WO2020148842A1 - Absorbance detector, chromatograph, and method for managing light source replacement time - Google Patents

Absorbance detector, chromatograph, and method for managing light source replacement time Download PDF

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Publication number
WO2020148842A1
WO2020148842A1 PCT/JP2019/001158 JP2019001158W WO2020148842A1 WO 2020148842 A1 WO2020148842 A1 WO 2020148842A1 JP 2019001158 W JP2019001158 W JP 2019001158W WO 2020148842 A1 WO2020148842 A1 WO 2020148842A1
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light source
unique information
storage unit
unit
replacement
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PCT/JP2019/001158
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French (fr)
Japanese (ja)
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拓弥 米倉
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株式会社島津製作所
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Priority to PCT/JP2019/001158 priority Critical patent/WO2020148842A1/en
Publication of WO2020148842A1 publication Critical patent/WO2020148842A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/62—Detectors specially adapted therefor
    • G01N30/74—Optical detectors

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  • the present invention relates to an absorbance detector, a chromatograph equipped with the same, and a light source replacement timing management method for the absorbance detector.
  • Absorbance detectors are used, for example, in liquid chromatographs to detect the components of a sample separated on an analytical column.
  • the absorbance detector includes a light source, an optical system, a flow cell and a photodetector (for example, refer to Patent Document 1).
  • the eluate from the analytical column is supplied to the flow cell.
  • the light emitted by the light source is guided to the flow cell by the optical system.
  • the photodetector detects a temporal change in the intensity of light in each wavelength range transmitted through the flow cell.
  • the operator When the lamp used as the light source in the absorbance detector reaches the end of its life, the operator replaces the lamp and records the replacement date and time using a personal computer or the like. However, the operator may forget to record the date and time of lamp replacement. In this case, since the replacement date and time of the replaced lamp does not remain, the operator cannot know when to replace the lamp next time.
  • An object of the present invention is to provide an absorbance detector capable of automatically recording the replacement time of a light source, a chromatograph equipped with the same, and a light source replacement time management method.
  • An absorbance detector includes a light source having a first storage unit, a flow cell that receives light generated by the light source, a photodetector that detects light transmitted through the flow cell, and a detection that controls the light source. And a detector control unit that stores in advance unique information for identifying the light source, and the detector control unit determines the unique information of the light source and the replacement time at which the light source was previously replaced. Is stored in the first storage unit, the acquisition unit that acquires the unique information stored in the first storage unit, the unique information acquired by the acquisition unit, and the unique information stored in the second storage unit.
  • the updating unit updates the unique information stored in the unit to the unique information acquired by the acquiring unit, and updates the replacement time stored in the second storage unit to the present time.
  • the replacement time means the time when the light source is replaced.
  • the unique information stored in the first storage unit is acquired, and the acquired unique information and the unique information stored in the second storage unit are acquired. It is determined whether the information matches.
  • the unique information stored in the second storage unit is updated to the acquired unique information, and the replacement time stored in the second storage unit is updated to the present time. This makes it possible to automatically record the replacement time of the light source.
  • the acquisition unit may acquire the unique information stored in the first storage unit in response to a predetermined operation of the light source.
  • the detector control unit further includes an operation control unit that controls the light source, and the predetermined operation may include an operation that the operation control unit turns on the light source.
  • the replacement time stored in the second storage unit is automatically updated in response to the light source being turned on after the replacement of the light source.
  • a chromatograph according to another aspect of the present invention includes an analytical column and the above-described absorbance detector, and the components of the sample separated by the analytical column are supplied to the flow cell of the absorbance detector.
  • the replacement time of the light source used for the absorbance detector in the chromatograph is automatically recorded.
  • a light source replacement timing management method is a light source replacement timing management method for managing replacement timing of a light source in an absorbance detector, wherein the light source stores in advance unique information for identifying the light source.
  • the light source replacement timing management method includes a step of storing the unique information of the light source and the replacement timing of the last replacement of the light source in the second storage section, and the first storage section. Acquiring the unique information stored in the second storage unit, determining whether the acquired unique information matches the unique information stored in the second storage unit, and the acquired unique information and the first unique information If it is determined that the unique information stored in the second storage unit does not match, the unique information stored in the second storage unit is updated to the acquired unique information and stored in the second storage unit. Updating the replacement time to the current time.
  • the predetermined operation may include an operation of turning on the light source.
  • the replacement time stored in the second storage unit is automatically updated in response to the light source being turned on after the replacement of the light source.
  • FIG. 1 is a block diagram showing the configuration of an absorbance detector according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing a functional configuration of the detector control unit of FIG.
  • FIG. 3 is a flowchart showing the light source replacement timing management method according to the present embodiment.
  • FIG. 4 is a block diagram showing the configuration of a liquid chromatograph including the absorbance detector of FIG.
  • FIG. 1 is a block diagram showing the configuration of an absorbance detector according to an embodiment of the present invention.
  • the absorbance detector according to this embodiment is used, for example, in a liquid chromatograph.
  • the absorbance detector 10 of FIG. 1 includes a light source 11, an optical system 12, a flow cell 13, an optical system 14, a photodetector 15, and a detector controller 30.
  • the light source 11 is, for example, a deuterium lamp.
  • the light source 11 has a memory 18 such as a non-volatile memory.
  • the optical system 12 includes a shutter, a shutter drive unit, a condenser mirror, and the like, and guides the light generated by the light source 11 to the flow cell 13.
  • the optical system 14 includes a mirror, a diffraction grating, and the like, and guides the light transmitted through the flow cell 13 to the photodetector 15.
  • the photodetector 15 includes, for example, a photodiode or a photodiode array, and detects a temporal change in light intensity in each wavelength range.
  • the detector control unit 30 includes an input/output I/F (interface) 31, a CPU (central processing unit) 32, a RAM (random access memory), a ROM (read only memory) 34, and a storage device 35.
  • the input/output I/F 31, CPU 32, RAM 33, ROM 34, and storage device 35 are connected to the bus 38.
  • the storage device 35 includes a storage medium such as a semiconductor memory or a memory card, and stores the detector control program.
  • the RAM 33 is used as a work area of the CPU 32.
  • a system program is stored in the ROM 34.
  • the CPU 32 controls the light source 11 and the optical system 12 through the input/output I/F 31 by executing the detector control program stored in the storage device 35 on the RAM 33, and outputs the output signal of the photodetector 15 to the input/output I/F. Receive through F31.
  • the detector control program includes a light source replacement timing management program.
  • the CPU 32 executes the light source replacement timing management program stored in the storage device 35 on the RAM 33 to implement the light source replacement timing management method described later.
  • the input/output I/F 31 is connected to, for example, the analysis control unit 50 of the liquid chromatograph.
  • FIG. 2 is a block diagram showing the functional configuration of the detector control unit 30 of FIG.
  • the detector control unit 30 includes a unique information acquisition unit 301, a match determination unit 302, a detector storage unit 303, an operation switching unit 304, a replacement date/time updating unit 305, a unique information updating unit 306, and a normal operation.
  • the control unit 307 is included.
  • the exchange date/time updating unit 305 and the unique information updating unit 306 form an updating unit 308.
  • the functions of the components (301 to 307) described above are realized by the CPU 32 of FIG. 1 executing a detector control program which is a computer program stored in a storage medium (recording medium) such as the storage device 35. Note that some or all of the constituent elements of the detector control unit 30 may be realized by hardware such as an electronic circuit.
  • the detector storage unit 303 includes the ROM 34 shown in FIG.
  • the memory 18 of the light source 11 stores in advance unique information for distinguishing the light source 11 from other light sources.
  • the unique information may be a unique number composed of a plurality of numbers, or may include characters such as alphabets. Different unique information is attached to each light source 11.
  • the detector storage unit 303 stores the unique information of the light source 11 currently attached to the absorbance detector 10 and the date and time when the currently attached light source 11 is attached as the exchange date and time.
  • the exchange date and time is represented by year, month, hour and minute, for example.
  • the exchange date and time is represented by a number such as “201812011200” (12:00, December 1, 2018).
  • the coincidence determination unit 302 determines whether the unique information acquired by the unique information acquisition unit 301 matches the unique information stored in the detector storage unit 303.
  • the exchange date/time updating unit 305 updates the unique information stored in the detector storage unit 303 with the unique information acquired by the unique information acquisition unit 301 when the determination result by the match determining unit 302 indicates a mismatch.
  • Update means deleting the unique information of the light source 11 that has been installed so far, and newly storing the unique information of the newly installed light source 11.
  • the exchange date/time updating unit 305 updates the exchange date/time stored in the detector storage unit 303 to the current date/time when the determination result by the coincidence determining unit 302 indicates a mismatch.
  • Updating means deleting the already stored date and time and newly storing the current date and time. The current date and time can be obtained by referring to the time information managed by the clock function of the detector control unit 30. This time information can be regularly updated to accurate time information acquired via the Internet.
  • the operation switching unit 304 switches between the operation of implementing the light source replacement timing management method (light source replacement timing management operation) and the normal operation of the absorbance detector 10.
  • the normal operation control unit 307 controls on/off of the light source 11, the operation of the shutter drive unit of the optical system 12, and the like, and receives an output signal of the photodetector 15.
  • FIG. 3 is a flowchart showing a light source replacement timing management method according to the present embodiment.
  • the light source replacement timing management method of FIG. 3 is implemented by executing a light source replacement timing management program.
  • the operation switching unit 304 determines whether or not the activation of the absorbance detector 10 is instructed by the analysis control unit 50 of FIG. 1 (step S1). When the activation of the absorbance detector 10 is instructed, the light source replacement timing management operation is performed. In this case, the normal operation control unit 307 turns on the light source 11 (step S2). The unique information acquisition unit 301 acquires the unique information stored in the memory 18 of the light source 11 (step S3).
  • the match determination unit 302 determines whether the unique information acquired by the unique information acquisition unit 301 matches the unique information stored in the detector storage unit 303 (step S4).
  • the unique information stored in the memory 18 of the light source 11 does not match the unique information stored in the detector storage unit 303. Therefore, when the unique information acquired by the unique information acquisition unit 301 does not match the unique information stored in the detector storage unit 303, the replacement date/time updating unit 305 causes the replacement date/time stored in the detector storage unit 303. Is updated to the current date and time (step S5).
  • the unique information update unit 306 updates the unique information stored in the detector storage unit 303 with the unique information acquired by the unique information acquisition unit 301 (step S6).
  • step S4 When the unique information acquired by the unique information acquisition unit 301 in step S4 matches the unique information stored in the detector storage unit 303, the replacement date and time and the unique information stored in the detector storage unit 303 are updated. Instead, the normal operation is performed (step S7).
  • the operation switching unit 304 switches the light source replacement time management operation to the normal operation.
  • the normal operation control unit 307 executes the normal operation (step S7).
  • the absorbance is detected by the absorbance detector 10.
  • the normal operation control unit 307 turns off the light source 11, and the operation switching unit 304 returns to step S1.
  • the light source replacement timing management method when the light source 11 is replaced, the light source replacement timing management method is executed when the absorbance detector 10 is started. As a result, the unique information of the light source 11 and the exchange date and time stored in the detector storage unit 303 are automatically updated.
  • FIG. 4 is a block diagram showing the configuration of a liquid chromatograph including the absorbance detector 10 of FIG.
  • the liquid chromatograph 100 in FIG. 4 includes a mobile phase pump 110, a sample introduction unit 120, an introduction port 130, an analysis column 140, a column oven 150, and an absorbance detector 10.
  • the analysis column 140 is provided in the column oven 150.
  • the column oven 150 maintains the analytical column 140 at a set temperature.
  • the pump 110 sucks the mobile phase (eluent) in the mobile phase container 111 and supplies it to the analysis column 140.
  • the sample introduction unit 120 includes, for example, an autosampler or an injector, and introduces the sample to be analyzed into the mobile phase at the introduction port 130.
  • the mobile phase and the sample that have passed through the analytical column 140 flow through the flow cell 13 (FIG. 1) of the absorbance detector 10 and are discharged to the waste liquid container 112.
  • the liquid chromatograph 100 includes an analysis control unit 50, an operation unit 51, and a display unit 52.
  • the operation unit 51 is used by the user to give various commands to the analysis control unit 50.
  • the analysis control unit 50 controls the pump 110, the sample introduction unit 120, the column oven 150, and the absorbance detector 10.
  • the analysis control unit 50 also generates a chromatogram based on the output signal of the absorbance detector 10. The generated chromatogram is displayed on the display unit 52.
  • the user can confirm the date and time when the light source 11 of the absorbance detector 10 is replaced by using the operation unit 51.
  • the analysis control unit 50 acquires the replacement date and time stored in the detector storage unit 303 in FIG. Command 30.
  • the replacement date and time stored in the detector storage unit 303 of the analysis control unit 50 is displayed on the display unit 52.
  • the user can know the replacement date and time of the light source 11 mounted in the absorbance detector 10. Therefore, the user can know the time when the light source 11 should be replaced with a new light source based on the usable time of the light source 11.
  • the absorbance detector 10 when the absorbance detector 10 is started after the light source 11 is exchanged, the exchange date and time stored in the detector storage unit 303 is present. And the unique information of the light source 11 before replacement stored in the detector storage unit 303 is updated to the unique information of the light source 11 after replacement. Thus, when the light source 11 is replaced, the replacement date and time is automatically recorded. Therefore, it is not necessary for the user to record the replacement date and time of the light source 11. Further, since the replacement date and time of the light source 11 is always updated when the light source 11 is replaced, a situation in which data of the replacement date and time does not remain does not occur. Further, since the user does not need to update the replacement date and time using the personal computer, the software for displaying the screen for updating the replacement date and time on the display unit 52 becomes unnecessary.
  • the replacement date and time is stored in the memory 18 and the detector storage unit 303 of the light source 11 as the replacement time of the light source 11, but only the month and the day are stored as the replacement time. May be.
  • the replacement date and time and the unique information stored in the detector storage unit 303 are updated in response to the operation of turning on the light source 11 after the replacement of the light source 11, but in response to other operations of the light source 11. Then, the replacement date and time and the unique information stored in the detector storage unit 303 may be updated.
  • the processing from step S3 of FIG. 3 may be executed each time a predetermined time elapses or at random timing. In this case, whether or not the unique information matches is checked, and when the unique information is different from each other, the unique information may be updated.
  • the light source 11 is a deuterium lamp, but the light source 11 may be another lamp such as a tungsten lamp or another light emitting element such as a light emitting diode.
  • the absorbance detector 10 is used for the liquid chromatograph 100, but the absorbance detector 10 may be used for other chromatographs such as a supercritical fluid chromatograph.
  • the memory 18 is an example of the first storage unit
  • the detector storage unit 303 is an example of the second storage unit
  • the coincidence determination unit 302 is an example of the determination unit
  • the light source 11 ON is an example of a predetermined operation of the light source
  • replacement date and time is an example of replacement time.

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Abstract

This absorbance detector is provided with a light source, a flow cell, a photodetector, and a detector control unit. The light source has a first storage unit. The flow cell receives light generated by the light source. The photodetector detects light transmitted through the flow cell. The first storage unit stores, in advance, characteristic information for identifying the light source. The detector control unit includes a second storage unit, a determination unit, and an updating unit. The second storage unit stores the characteristic information of the light source and the replacement time of the light source. An acquisition unit acquires the characteristic information stored in the first storage unit. The determination unit determines whether the characteristic information acquired by the acquisition unit and the characteristic information stored in the second storage unit match. When it is determined by the determination unit that the characteristic information acquired by the acquisition unit and the characteristic information stored in the second storage unit do not match, the updating unit updates the characteristic information stored in the second storage unit to the characteristic information acquired by the acquisition unit, and updates the replacement time stored in the second storage unit to the current time.

Description

吸光度検出器、クロマトグラフおよび光源交換時期管理方法Absorbance detector, chromatograph and light source replacement timing management method
　本発明は、吸光度検出器、それを備えたクロマトグラフ、および吸光度検出器における光源交換時期管理方法に関する。 The present invention relates to an absorbance detector, a chromatograph equipped with the same, and a light source replacement timing management method for the absorbance detector.
　吸光度検出器は、例えば液体クロマトグラフにおいて分析カラムで分離された試料の成分を検出するために使用される。吸光度検出器は、光源、光学系、フローセルおよび光検出器を備える（例えば、特許文献１参照）。フローセルには分析カラムからの溶出液が供給される。光源により発せられた光は光学系によりフローセルに導かれる。光検出器では、フローセルを透過した各波長範囲の光の強度の時間的な変化が検出される。
国際公開第２０１３／１４０６１７号 Absorbance detectors are used, for example, in liquid chromatographs to detect the components of a sample separated on an analytical column. The absorbance detector includes a light source, an optical system, a flow cell and a photodetector (for example, refer to Patent Document 1). The eluate from the analytical column is supplied to the flow cell. The light emitted by the light source is guided to the flow cell by the optical system. The photodetector detects a temporal change in the intensity of light in each wavelength range transmitted through the flow cell.
International Publication No. 2013/140617
　吸光度検出器において光源として使用されるランプが寿命に達した場合に、作業者は、ランプを交換し、パーソナルコンピュータ等により交換日時を記録する。しかしながら、作業者がランプの交換日時の記録を忘れることがある。この場合、交換されたランプの交換日時が残らないため、作業者は次にランプをいつ交換すべきかを把握することができない。 When the lamp used as the light source in the absorbance detector reaches the end of its life, the operator replaces the lamp and records the replacement date and time using a personal computer or the like. However, the operator may forget to record the date and time of lamp replacement. In this case, since the replacement date and time of the replaced lamp does not remain, the operator cannot know when to replace the lamp next time.
　本発明の目的は、光源の交換時期を自動的に記録可能な吸光度検出器、それを備えたクロマトグラフ、および光源交換時期管理方法を提供することである。 An object of the present invention is to provide an absorbance detector capable of automatically recording the replacement time of a light source, a chromatograph equipped with the same, and a light source replacement time management method.
　本発明の一局面に従う吸光度検出器は、第１の記憶部を有する光源と、光源により発生された光を受けるフローセルと、フローセルを透過した光を検出する光検出器と、光源を制御する検出器制御部とを備え、第１の記憶部は、光源を識別するための固有情報を予め記憶し、検出器制御部は、光源の固有情報、および、光源の前回交換が行われた交換時期を記憶する第２の記憶部と、第１の記憶部に記憶された固有情報を取得する取得部と、取得部により取得された固有情報と第２の記憶部に記憶された固有情報とが一致するか否かを判定する判定部と、取得部により取得された固有情報と第２の記憶部に記憶された固有情報とが一致しないと判定部により判定された場合に、第２の記憶部に記憶された固有情報を取得部により取得された固有情報に更新し、第２の記憶部に記憶された交換時期を現時点に更新する更新部とを含む。ここで、交換時期とは、光源が交換された時期をいう。 An absorbance detector according to one aspect of the present invention includes a light source having a first storage unit, a flow cell that receives light generated by the light source, a photodetector that detects light transmitted through the flow cell, and a detection that controls the light source. And a detector control unit that stores in advance unique information for identifying the light source, and the detector control unit determines the unique information of the light source and the replacement time at which the light source was previously replaced. Is stored in the first storage unit, the acquisition unit that acquires the unique information stored in the first storage unit, the unique information acquired by the acquisition unit, and the unique information stored in the second storage unit. The determination unit that determines whether they match, and the determination unit that determines that the unique information acquired by the acquisition unit and the unique information stored in the second storage unit do not match the second storage The updating unit updates the unique information stored in the unit to the unique information acquired by the acquiring unit, and updates the replacement time stored in the second storage unit to the present time. Here, the replacement time means the time when the light source is replaced.
　その吸光度検出器に設けられた光源が新たな光源に交換された場合、第１の記憶部に記憶された固有情報が取得され、取得された固有情報と第２の記憶部に記憶された固有情報とが一致するか否かが判定される。光源が交換された場合、取得された固有情報と第２の記憶部に記憶された固有情報とが一致しない。この場合、第２の記憶部に記憶された固有情報が取得された固有情報に更新されるとともに、第２の記憶部に記憶された交換時期が現時点に更新される。これにより、光源の交換時期を自動的に記録することが可能となる。 When the light source provided in the absorbance detector is replaced with a new light source, the unique information stored in the first storage unit is acquired, and the acquired unique information and the unique information stored in the second storage unit are acquired. It is determined whether the information matches. When the light source is replaced, the acquired unique information does not match the unique information stored in the second storage unit. In this case, the unique information stored in the second storage unit is updated to the acquired unique information, and the replacement time stored in the second storage unit is updated to the present time. This makes it possible to automatically record the replacement time of the light source.
　取得部は、光源の予め定められた操作に応答して第１の記憶部に記憶された固有情報を取得してもよい。 The acquisition unit may acquire the unique information stored in the first storage unit in response to a predetermined operation of the light source.
　検出器制御部は、光源を制御する動作制御部をさらに含み、予め定められた操作は、動作制御部が光源をオンする操作を含んでもよい。この場合、光源の交換後に光源がオンされたことに応答して第２の記憶部に記憶された交換時期が自動的に更新される。 The detector control unit further includes an operation control unit that controls the light source, and the predetermined operation may include an operation that the operation control unit turns on the light source. In this case, the replacement time stored in the second storage unit is automatically updated in response to the light source being turned on after the replacement of the light source.
　本発明の他の局面に従うクロマトグラフは、分析カラムと、上記の吸光度検出器とを備え、分析カラムにより分離された試料の成分が吸光度検出器のフローセルに供給される。 A chromatograph according to another aspect of the present invention includes an analytical column and the above-described absorbance detector, and the components of the sample separated by the analytical column are supplied to the flow cell of the absorbance detector.
　この場合、クロマトグラフにおける吸光度検出器に用いられる光源の交換時期が自動的に記録される。 In this case, the replacement time of the light source used for the absorbance detector in the chromatograph is automatically recorded.
　本発明のさらに他の局面に従う光源交換時期管理方法は、吸光度検出器における光源の交換時期を管理する光源交換時期管理方法であって、光源は、当該光源を識別するための固有情報を予め記憶する第１の記憶部を有し、光源交換時期管理方法は、光源の固有情報、および、光源の前回交換が行われた交換時期を第２の記憶部に記憶するステップと、第１の記憶部に記憶された固有情報を取得するステップと、取得された固有情報と第２の記憶部に記憶された固有情報とが一致するか否かを判定するステップと、取得された固有情報と第２の記憶部に記憶された固有情報とが一致しないと判定された場合に、第２の記憶部に記憶された固有情報を取得された固有情報に更新し、第２の記憶部に記憶された交換時期を現時点に更新するステップとを含む。 A light source replacement timing management method according to yet another aspect of the present invention is a light source replacement timing management method for managing replacement timing of a light source in an absorbance detector, wherein the light source stores in advance unique information for identifying the light source. The light source replacement timing management method includes a step of storing the unique information of the light source and the replacement timing of the last replacement of the light source in the second storage section, and the first storage section. Acquiring the unique information stored in the second storage unit, determining whether the acquired unique information matches the unique information stored in the second storage unit, and the acquired unique information and the first unique information If it is determined that the unique information stored in the second storage unit does not match, the unique information stored in the second storage unit is updated to the acquired unique information and stored in the second storage unit. Updating the replacement time to the current time.
　この光源交換時期管理方法によれば、吸光度検出器における光源の交換時期を自動的に記録することが可能となる。 According to this light source replacement timing management method, it becomes possible to automatically record the replacement timing of the light source in the absorbance detector.
　予め定められた操作は、光源をオンする操作を含んでもよい。この場合、光源の交換後に光源がオンされたことに応答して第２の記憶部に記憶された交換時期が自動的に更新される。 The predetermined operation may include an operation of turning on the light source. In this case, the replacement time stored in the second storage unit is automatically updated in response to the light source being turned on after the replacement of the light source.
　本発明によれば、吸光度検出器における光源の交換時期を自動的に記録することが可能となる。 According to the present invention, it becomes possible to automatically record the replacement time of the light source in the absorbance detector.
図１は本発明の一実施の形態に係る吸光度検出器の構成を示すブロック図である。FIG. 1 is a block diagram showing the configuration of an absorbance detector according to an embodiment of the present invention. 図２は図１の検出器制御部の機能的な構成を示すブロック図である。FIG. 2 is a block diagram showing a functional configuration of the detector control unit of FIG. 図３は本実施の形態に係る光源交換時期管理方法を示すフローチャートである。FIG. 3 is a flowchart showing the light source replacement timing management method according to the present embodiment. 図４は図１の吸光度検出器を含む液体クロマトグラフの構成を示すブロック図である。FIG. 4 is a block diagram showing the configuration of a liquid chromatograph including the absorbance detector of FIG.
　以下、本発明の実施の形態に係る吸光度検出器、クロマトグラフおよび光源交換時期管理方法について図面を参照しながら詳細に説明する。 Hereinafter, an absorbance detector, a chromatograph, and a light source replacement timing management method according to an embodiment of the present invention will be described in detail with reference to the drawings.
　（１）吸光度検出器の構成
　図１は本発明の一実施の形態に係る吸光度検出器の構成を示すブロック図である。本実施の形態に係る吸光度検出器は、例えば液体クロマトグラフに用いられる。 (1) Configuration of Absorbance Detector FIG. 1 is a block diagram showing the configuration of an absorbance detector according to an embodiment of the present invention. The absorbance detector according to this embodiment is used, for example, in a liquid chromatograph.
　図１の吸光度検出器１０は、光源１１、光学系１２、フローセル１３、光学系１４、光検出器１５、および検出器制御部３０を含む。本実施の形態では、光源１１は、例えば重水素ランプである。光源１１は、不揮発性メモリ等のメモリ１８を有する。 The absorbance detector 10 of FIG. 1 includes a light source 11, an optical system 12, a flow cell 13, an optical system 14, a photodetector 15, and a detector controller 30. In the present embodiment, the light source 11 is, for example, a deuterium lamp. The light source 11 has a memory 18 such as a non-volatile memory.
　光学系１２は、シャッタ、シャッタ駆動部および集光ミラー等を含み、光源１１により発生された光をフローセル１３に導く。フローセル１３には、例えば液体クロマトグラフの分析カラムから供給される移動相および試料が流れる。光学系１４は、ミラーおよび回折格子等を含み、フローセル１３を透過した光を光検出器１５に導く。光検出器１５は、例えばフォトダイオードまたはフォトダイオードアレイを含み、各波長範囲の光の強度の時間的な変化を検出する。 The optical system 12 includes a shutter, a shutter drive unit, a condenser mirror, and the like, and guides the light generated by the light source 11 to the flow cell 13. A mobile phase and a sample supplied from, for example, an analysis column of a liquid chromatograph flow in the flow cell 13. The optical system 14 includes a mirror, a diffraction grating, and the like, and guides the light transmitted through the flow cell 13 to the photodetector 15. The photodetector 15 includes, for example, a photodiode or a photodiode array, and detects a temporal change in light intensity in each wavelength range.
　検出器制御部３０は、入出力Ｉ／Ｆ（インタフェース）３１、ＣＰＵ（中央演算処理装置）３２、ＲＡＭ（ランダムアクセスメモリ）、ＲＯＭ（リードオンリメモリ）３４および記憶装置３５を含む。入出力Ｉ／Ｆ３１、ＣＰＵ３２、ＲＡＭ３３、ＲＯＭ３４および記憶装置３５はバス３８に接続されている。 The detector control unit 30 includes an input/output I/F (interface) 31, a CPU (central processing unit) 32, a RAM (random access memory), a ROM (read only memory) 34, and a storage device 35. The input/output I/F 31, CPU 32, RAM 33, ROM 34, and storage device 35 are connected to the bus 38.
　記憶装置３５は、半導体メモリまたはメモリカード等の記憶媒体を含み、検出器制御プログラムを記憶する。ＲＡＭ３３は、ＣＰＵ３２の作業領域として用いられる。ＲＯＭ３４にはシステムプログラムが記憶される。ＣＰＵ３２は、記憶装置３５に記憶された検出器制御プログラムをＲＡＭ３３上で実行することにより入出力Ｉ／Ｆ３１を通して光源１１および光学系１２を制御するとともに光検出器１５の出力信号を入出力Ｉ／Ｆ３１を通して受ける。また、検出器制御プログラムは、光源交換時期管理プログラムを含む。ＣＰＵ３２が記憶装置３５に記憶された光源交換時期管理プログラムをＲＡＭ３３上で実行することにより後述する光源交換時期管理方法が実施される。入出力Ｉ／Ｆ３１は、例えば液体クロマトグラフの分析制御部５０に接続される。 The storage device 35 includes a storage medium such as a semiconductor memory or a memory card, and stores the detector control program. The RAM 33 is used as a work area of the CPU 32. A system program is stored in the ROM 34. The CPU 32 controls the light source 11 and the optical system 12 through the input/output I/F 31 by executing the detector control program stored in the storage device 35 on the RAM 33, and outputs the output signal of the photodetector 15 to the input/output I/F. Receive through F31. Further, the detector control program includes a light source replacement timing management program. The CPU 32 executes the light source replacement timing management program stored in the storage device 35 on the RAM 33 to implement the light source replacement timing management method described later. The input/output I/F 31 is connected to, for example, the analysis control unit 50 of the liquid chromatograph.
　（２）検出器制御部３０の機能的な構成
　図２は図１の検出器制御部３０の機能的な構成を示すブロック図である。図２に示すように、検出器制御部３０は、固有情報取得部３０１、一致判定部３０２、検出器記憶部３０３、動作切替部３０４、交換日時更新部３０５、固有情報更新部３０６および通常動作制御部３０７を含む。交換日時更新部３０５および固有情報更新部３０６が更新部３０８を構成する。上記の構成要素（３０１～３０７）の機能は、図１のＣＰＵ３２が記憶装置３５等の記憶媒体（記録媒体）に記憶されたコンピュータプログラムである検出器制御プログラムを実行することにより実現される。なお、検出器制御部３０の一部または全ての構成要素が電子回路等のハードウエアにより実現されてもよい。検出器記憶部３０３は、図１のＲＯＭ３４により構成される。 (2) Functional Configuration of Detector Control Unit 30 FIG. 2 is a block diagram showing the functional configuration of the detector control unit 30 of FIG. As shown in FIG. 2, the detector control unit 30 includes a unique information acquisition unit 301, a match determination unit 302, a detector storage unit 303, an operation switching unit 304, a replacement date/time updating unit 305, a unique information updating unit 306, and a normal operation. The control unit 307 is included. The exchange date/time updating unit 305 and the unique information updating unit 306 form an updating unit 308. The functions of the components (301 to 307) described above are realized by the CPU 32 of FIG. 1 executing a detector control program which is a computer program stored in a storage medium (recording medium) such as the storage device 35. Note that some or all of the constituent elements of the detector control unit 30 may be realized by hardware such as an electronic circuit. The detector storage unit 303 includes the ROM 34 shown in FIG.
　光源１１のメモリ１８には、光源１１を他の光源から識別するための固有情報を予め記憶している。固有情報は、複数の数字からなる固有番号であってもよく、アルファベット等の文字を含んでもよい。各光源１１について異なる固有情報が付されている。 The memory 18 of the light source 11 stores in advance unique information for distinguishing the light source 11 from other light sources. The unique information may be a unique number composed of a plurality of numbers, or may include characters such as alphabets. Different unique information is attached to each light source 11.
　検出器記憶部３０３には、吸光度検出器１０に現在取り付けられている光源１１の固有情報が記憶されるとともに、現在取り付けられている光源１１が取り付けられた日時が交換日時として記憶される。本実施の形態では、交換日時は、例えば、年、月、時および分により表される。例えば、交換日時は、「２０１８１２０１１２００」（２０１８年１２月１日１２時０分）のように数字で表される。 The detector storage unit 303 stores the unique information of the light source 11 currently attached to the absorbance detector 10 and the date and time when the currently attached light source 11 is attached as the exchange date and time. In the present embodiment, the exchange date and time is represented by year, month, hour and minute, for example. For example, the exchange date and time is represented by a number such as “201812011200” (12:00, December 1, 2018).
　一致判定部３０２は、固有情報取得部３０１により取得された固有情報が検出器記憶部３０３に記憶された固有情報と一致しているか否かを判定する。交換日時更新部３０５は、一致判定部３０２による判定結果が不一致を示している場合に、検出器記憶部３０３に記憶された固有情報を固有情報取得部３０１により取得された固有情報に更新する。更新とは、これまでに取り付けられていた光源１１の固有情報を削除して、新たに取り付けられた光源１１の固有情報を新規に記憶することをいう。交換日時更新部３０５は、一致判定部３０２による判定結果が不一致を示している場合に、検出器記憶部３０３に記憶された交換日時を現在の日時に更新する。更新とは、既に記憶された日時を削除して、現在の日時を新規に記憶することである。現在の日時は、検出器制御部３０が有する時計機能によって管理されている時刻情報を参照することにより得られる。この時刻情報は、インターネット経由で取得される正確な時刻情報に定期的に更新することができる。 The coincidence determination unit 302 determines whether the unique information acquired by the unique information acquisition unit 301 matches the unique information stored in the detector storage unit 303. The exchange date/time updating unit 305 updates the unique information stored in the detector storage unit 303 with the unique information acquired by the unique information acquisition unit 301 when the determination result by the match determining unit 302 indicates a mismatch. Update means deleting the unique information of the light source 11 that has been installed so far, and newly storing the unique information of the newly installed light source 11. The exchange date/time updating unit 305 updates the exchange date/time stored in the detector storage unit 303 to the current date/time when the determination result by the coincidence determining unit 302 indicates a mismatch. Updating means deleting the already stored date and time and newly storing the current date and time. The current date and time can be obtained by referring to the time information managed by the clock function of the detector control unit 30. This time information can be regularly updated to accurate time information acquired via the Internet.
　動作切替部３０４は、光源交換時期管理方法を実施する動作（光源交換時期管理動作）と吸光度検出器１０の通常動作とを切り替える。通常動作制御部３０７は、光源１１のオンオフおよび光学系１２のシャッタ駆動部の動作等を制御するとともに、光検出器１５の出力信号を受ける。 The operation switching unit 304 switches between the operation of implementing the light source replacement timing management method (light source replacement timing management operation) and the normal operation of the absorbance detector 10. The normal operation control unit 307 controls on/off of the light source 11, the operation of the shutter drive unit of the optical system 12, and the like, and receives an output signal of the photodetector 15.
　（３）光源交換時期管理方法
　図３は本実施の形態に係る光源交換時期管理方法を示すフローチャートである。図３の光源交換時期管理方法は、光源交換時期管理プログラムの実行により実施される。 (3) Light Source Replacement Timing Management Method FIG. 3 is a flowchart showing a light source replacement timing management method according to the present embodiment. The light source replacement timing management method of FIG. 3 is implemented by executing a light source replacement timing management program.
　動作切替部３０４は、図１の分析制御部５０により吸光度検出器１０の起動が指令されたか否かを判定する（ステップＳ１）。吸光度検出器１０の起動が指令された場合には、光源交換時期管理動作が行われる。この場合、通常動作制御部３０７は、光源１１をオンにする（ステップＳ２）。固有情報取得部３０１は、光源１１のメモリ１８に記憶された固有情報を取得する（ステップＳ３）。 The operation switching unit 304 determines whether or not the activation of the absorbance detector 10 is instructed by the analysis control unit 50 of FIG. 1 (step S1). When the activation of the absorbance detector 10 is instructed, the light source replacement timing management operation is performed. In this case, the normal operation control unit 307 turns on the light source 11 (step S2). The unique information acquisition unit 301 acquires the unique information stored in the memory 18 of the light source 11 (step S3).
　一致判定部３０２は、固有情報取得部３０１により取得された固有情報が検出器記憶部３０３に記憶された固有情報と一致するか否かを判定する（ステップＳ４）。光源１１が交換された場合には、光源１１のメモリ１８に記憶された固有情報が検出器記憶部３０３に記憶された固有情報と一致しない。したがって、固有情報取得部３０１により取得された固有情報が検出器記憶部３０３に記憶された固有情報と一致しない場合には、交換日時更新部３０５は、検出器記憶部３０３に記憶された交換日時を現在の日時に更新する（ステップＳ５）。固有情報更新部３０６は、検出器記憶部３０３に記憶された固有情報を固有情報取得部３０１により取得された固有情報に更新する（ステップＳ６）。 The match determination unit 302 determines whether the unique information acquired by the unique information acquisition unit 301 matches the unique information stored in the detector storage unit 303 (step S4). When the light source 11 is replaced, the unique information stored in the memory 18 of the light source 11 does not match the unique information stored in the detector storage unit 303. Therefore, when the unique information acquired by the unique information acquisition unit 301 does not match the unique information stored in the detector storage unit 303, the replacement date/time updating unit 305 causes the replacement date/time stored in the detector storage unit 303. Is updated to the current date and time (step S5). The unique information update unit 306 updates the unique information stored in the detector storage unit 303 with the unique information acquired by the unique information acquisition unit 301 (step S6).
　ステップＳ４において固有情報取得部３０１により取得された固有情報が検出器記憶部３０３に記憶された固有情報と一致した場合には、検出器記憶部３０３に記憶された交換日時および固有情報が更新されずに通常動作が行われる（ステップＳ７）。 When the unique information acquired by the unique information acquisition unit 301 in step S4 matches the unique information stored in the detector storage unit 303, the replacement date and time and the unique information stored in the detector storage unit 303 are updated. Instead, the normal operation is performed (step S7).
　その後、動作切替部３０４は、光源交換時期管理動作を通常動作に切り替える。それにより、通常動作制御部３０７は通常動作を実行する（ステップＳ７）。通常動作では、吸光度検出器１０による吸光度の検出が行われる。通常動作が終了すると、通常動作制御部３０７が光源１１をオフにし、動作切替部３０４がステップＳ１に戻る。 After that, the operation switching unit 304 switches the light source replacement time management operation to the normal operation. Thereby, the normal operation control unit 307 executes the normal operation (step S7). In normal operation, the absorbance is detected by the absorbance detector 10. When the normal operation ends, the normal operation control unit 307 turns off the light source 11, and the operation switching unit 304 returns to step S1.
　上記の光源交換時期管理方法によると、光源１１が交換された場合、吸光度検出器１０の起動時に光源交換時期管理方法が実施される。それにより、検出器記憶部３０３に記憶された光源１１の固有情報および交換日時が自動的に更新される。 According to the above-described light source replacement timing management method, when the light source 11 is replaced, the light source replacement timing management method is executed when the absorbance detector 10 is started. As a result, the unique information of the light source 11 and the exchange date and time stored in the detector storage unit 303 are automatically updated.
　（４）液体クロマトグラフ
　図４は図１の吸光度検出器１０を含む液体クロマトグラフの構成を示すブロック図である。 (4) Liquid Chromatograph FIG. 4 is a block diagram showing the configuration of a liquid chromatograph including the absorbance detector 10 of FIG.
　図４の液体クロマトグラフ１００は、移動相用のポンプ１１０、試料導入部１２０、導入ポート１３０、分析カラム１４０、カラムオーブン１５０および吸光度検出器１０を含む。分析カラム１４０は、カラムオーブン１５０内に設けられる。カラムオーブン１５０は、分析カラム１４０を設定された温度に維持する。 The liquid chromatograph 100 in FIG. 4 includes a mobile phase pump 110, a sample introduction unit 120, an introduction port 130, an analysis column 140, a column oven 150, and an absorbance detector 10. The analysis column 140 is provided in the column oven 150. The column oven 150 maintains the analytical column 140 at a set temperature.
　ポンプ１１０は、移動相容器１１１内の移動相（溶離液）を吸引し、分析カラム１４０に供給する。試料導入部１２０は、例えばオートサンプラまたはインジェクタを含み、分析対象である試料を導入ポート１３０において移動相に導入する。分析カラム１４０を通過した移動相および試料は、吸光度検出器１０のフローセル１３（図１）を流れ、廃液容器１１２に排出される。 The pump 110 sucks the mobile phase (eluent) in the mobile phase container 111 and supplies it to the analysis column 140. The sample introduction unit 120 includes, for example, an autosampler or an injector, and introduces the sample to be analyzed into the mobile phase at the introduction port 130. The mobile phase and the sample that have passed through the analytical column 140 flow through the flow cell 13 (FIG. 1) of the absorbance detector 10 and are discharged to the waste liquid container 112.
　液体クロマトグラフ１００は、分析制御部５０、操作部５１および表示部５２を含む。操作部５１は、使用者が分析制御部５０に種々の指令を与えるために用いられる。分析制御部５０は、ポンプ１１０、試料導入部１２０、カラムオーブン１５０および吸光度検出器１０を制御する。また、分析制御部５０は、吸光度検出器１０の出力信号に基づいてクロマトグラムを生成する。生成されたクロマトグラムは表示部５２に表示される。 The liquid chromatograph 100 includes an analysis control unit 50, an operation unit 51, and a display unit 52. The operation unit 51 is used by the user to give various commands to the analysis control unit 50. The analysis control unit 50 controls the pump 110, the sample introduction unit 120, the column oven 150, and the absorbance detector 10. The analysis control unit 50 also generates a chromatogram based on the output signal of the absorbance detector 10. The generated chromatogram is displayed on the display unit 52.
　また、使用者は、操作部５１を用いて吸光度検出器１０の光源１１の交換日時を確認することができる。この場合、使用者が操作部５１により光源１１の交換日時の表示を指令すると、分析制御部５０は、図２の検出器記憶部３０３に記憶される交換日時を取得するように検出器制御部３０に指令する。分析制御部５０の検出器記憶部３０３に記憶された交換日時が表示部５２に表示される。それにより、使用者は、吸光度検出器１０内に取り付けられている光源１１の交換日時を知ることができる。したがって、使用者は、光源１１の使用可能時間に基づいて光源１１を次に新たな光源と交換すべき時期を把握することができる。 Also, the user can confirm the date and time when the light source 11 of the absorbance detector 10 is replaced by using the operation unit 51. In this case, when the user commands the operation unit 51 to display the replacement date and time of the light source 11, the analysis control unit 50 acquires the replacement date and time stored in the detector storage unit 303 in FIG. Command 30. The replacement date and time stored in the detector storage unit 303 of the analysis control unit 50 is displayed on the display unit 52. Thereby, the user can know the replacement date and time of the light source 11 mounted in the absorbance detector 10. Therefore, the user can know the time when the light source 11 should be replaced with a new light source based on the usable time of the light source 11.
　（５）実施の形態の効果
　本実施の形態に係る吸光度検出器１０においては、光源１１が交換された後の吸光度検出器１０の起動時に、検出器記憶部３０３に記憶された交換日時が現在の日時に更新されるとともに、検出器記憶部３０３に記憶された交換前の光源１１の固有情報が交換後の光源１１の固有情報に更新される。このように、光源１１が交換されると、交換日時が自動的に記録される。そのため、使用者が光源１１の交換日時を記録する必要がない。また、光源１１を交換すると光源１１の交換日時の更新が必ず行われるので、交換日時のデータが残らない事態が生じない。さらに、使用者がパーソナルコンピュータを用いて交換日時を更新する必要がないので、表示部５２に交換日時の更新のための画面を表示させるソフトウエアが不要となる。 (5) Effects of the Embodiment In the absorbance detector 10 according to the present embodiment, when the absorbance detector 10 is started after the light source 11 is exchanged, the exchange date and time stored in the detector storage unit 303 is present. And the unique information of the light source 11 before replacement stored in the detector storage unit 303 is updated to the unique information of the light source 11 after replacement. Thus, when the light source 11 is replaced, the replacement date and time is automatically recorded. Therefore, it is not necessary for the user to record the replacement date and time of the light source 11. Further, since the replacement date and time of the light source 11 is always updated when the light source 11 is replaced, a situation in which data of the replacement date and time does not remain does not occur. Further, since the user does not need to update the replacement date and time using the personal computer, the software for displaying the screen for updating the replacement date and time on the display unit 52 becomes unnecessary.
　（６）他の実施の形態
　上記実施の形態では、光源１１の交換時期として交換日時が光源１１のメモリ１８および検出器記憶部３０３に記憶されるが、交換時期として月および日のみが記憶されてもよい。 (6) Other Embodiments In the above embodiment, the replacement date and time is stored in the memory 18 and the detector storage unit 303 of the light source 11 as the replacement time of the light source 11, but only the month and the day are stored as the replacement time. May be.
　上記実施の形態では、光源１１の交換後に光源１１がオンされる操作に応答して検出器記憶部３０３に記憶された交換日時および固有情報が更新されるが、光源１１の他の操作に応答して検出器記憶部３０３に記憶された交換日時および固有情報が更新されてもよい。例えば、所定時間が経過するごとに、またはランダムなタイミングで、図３のステップＳ３からの処理が実行されてもよい。この場合、固有情報の一致の有無の確認が行われ、固有情報が互いに異なっている場合に固有情報の更新が行われてもよい。 In the above embodiment, the replacement date and time and the unique information stored in the detector storage unit 303 are updated in response to the operation of turning on the light source 11 after the replacement of the light source 11, but in response to other operations of the light source 11. Then, the replacement date and time and the unique information stored in the detector storage unit 303 may be updated. For example, the processing from step S3 of FIG. 3 may be executed each time a predetermined time elapses or at random timing. In this case, whether or not the unique information matches is checked, and when the unique information is different from each other, the unique information may be updated.
　上記実施の形態では、光源１１が重水素ランプであるが、光源１１がタングステンランプ等の他のランプであってもよく、または発光ダイオード等の他の発光素子であってもよい。 In the above embodiment, the light source 11 is a deuterium lamp, but the light source 11 may be another lamp such as a tungsten lamp or another light emitting element such as a light emitting diode.
　上記実施の形態では、吸光度検出器１０が液体クロマトグラフ１００に用いられているが、吸光度検出器１０が超臨界流体クロマトグラフ等の他のクロマトグラフに用いられてもよい。 In the above embodiment, the absorbance detector 10 is used for the liquid chromatograph 100, but the absorbance detector 10 may be used for other chromatographs such as a supercritical fluid chromatograph.
　（７）請求項の各構成要素と実施の形態の各要素との対応
　以下、請求項の各構成要素と実施の形態の各要素との対応の例について説明する。上記実施の形態では、メモリ１８が第１の記憶部の例であり、検出器記憶部３０３が第２の記憶部の例であり、一致判定部３０２が判定部の例であり、光源１１のオンが光源の予め定められた操作の例であり、交換日時が交換時期の例である。請求項の各構成要素として、請求項に記載されている構成または機能を有する他の種々の要素を用いることもできる。 (7) Correspondence between each component of the claims and each element of the embodiment An example of correspondence between each component of the claim and each element of the embodiment will be described below. In the above embodiment, the memory 18 is an example of the first storage unit, the detector storage unit 303 is an example of the second storage unit, the coincidence determination unit 302 is an example of the determination unit, and the light source 11 ON is an example of a predetermined operation of the light source, and replacement date and time is an example of replacement time. As each of the constituent elements in the claims, various other elements having the configurations or functions described in the claims can be used.

Claims (5)

  1. 第１の記憶部を有する光源と、
    　前記光源により発生された光を受けるフローセルと、
    　前記フローセルを透過した光を検出する光検出器と、
    　前記光源を制御する検出器制御部とを備え、
    　前記第１の記憶部は、前記光源を識別するための固有情報を予め記憶し、
    　前記検出器制御部は、
    　前記光源の固有情報、および、前記光源の前回交換が行われた交換時期を記憶する第２の記憶部と、
    　前記第１の記憶部に記憶された固有情報を取得する取得部と、
    　前記取得部により取得された固有情報と前記第２の記憶部に記憶された固有情報とが一致するか否かを判定する判定部と、
    　前記取得部により取得された固有情報と前記第２の記憶部に記憶された固有情報とが一致しないと前記判定部により判定された場合に、前記第２の記憶部に記憶された固有情報を前記取得部により取得された固有情報に更新し、前記第２の記憶部に記憶された交換時期を現時点に更新する更新部とを含む、吸光度検出器。     A light source having a first storage section,
    A flow cell for receiving light generated by the light source,
    A photodetector for detecting light transmitted through the flow cell,
    A detector control unit for controlling the light source,
    The first storage unit stores in advance unique information for identifying the light source,
    The detector control unit,
    A second storage unit for storing the unique information of the light source and the replacement time of the last replacement of the light source;
    An acquisition unit that acquires the unique information stored in the first storage unit;
    A determination unit that determines whether or not the unique information acquired by the acquisition unit and the unique information stored in the second storage unit match;
    When the determination unit determines that the unique information acquired by the acquisition unit does not match the unique information stored in the second storage unit, the unique information stored in the second storage unit is An absorbance detector including: an update unit that updates the unique information acquired by the acquisition unit and updates the replacement time stored in the second storage unit to the present time.
  2. 　前記取得部は、前記光源の予め定められた操作に応答して前記第１の記憶部に記憶された固有情報を取得する、請求項１記載の吸光度検出器。　　 The absorbance detector according to claim 1, wherein the acquisition unit acquires the unique information stored in the first storage unit in response to a predetermined operation of the light source. ――
  3. 前記検出器制御部は、前記光源を制御する動作制御部をさらに含み、
    　前記予め定められた操作は、前記動作制御部が前記光源をオンする操作を含む、請求項２記載の吸光度検出器。     The detector control unit further includes an operation control unit that controls the light source,
    The absorbance detector according to claim 2, wherein the predetermined operation includes an operation of turning on the light source by the operation control unit.
  4. 分析カラムと、
    　請求項１～３のいずれか一項に記載の吸光度検出器とを備え、
    　前記分析カラムにより分離された試料の成分が前記吸光度検出器の前記フローセルに供給される、クロマトグラフ。     Analytical column,
    An absorbance detector according to any one of claims 1 to 3, comprising:
    The chromatograph, wherein the components of the sample separated by the analytical column are supplied to the flow cell of the absorbance detector.
  5. 吸光度検出器における光源の交換時期を管理する光源交換時期管理方法であって、
    　前記光源は、当該光源を識別するための固有情報を予め記憶する第１の記憶部を有し、
    　前記光源交換時期管理方法は、
    　前記光源の固有情報、および、前記光源の前回交換が行われた交換時期を第２の記憶部に記憶するステップと、
    　前記第１の記憶部に記憶された固有情報を取得するステップと、
    　前記取得された固有情報と前記第２の記憶部に記憶された固有情報とが一致するか否かを判定するステップと、
    　前記取得された固有情報と前記第２の記憶部に記憶された固有情報とが一致しないと判定された場合に、前記第２の記憶部に記憶された固有情報を前記取得された固有情報に更新し、前記第２の記憶部に記憶された交換時期を現時点に更新するステップとを含む、光源交換時期管理方法。     A light source replacement timing management method for managing the replacement timing of a light source in an absorbance detector,
    The light source has a first storage unit that stores in advance unique information for identifying the light source,
    The light source replacement timing management method is
    Storing the unique information of the light source and the replacement time of the previous replacement of the light source in the second storage unit;
    Obtaining the unique information stored in the first storage unit;
    Determining whether the acquired unique information and the unique information stored in the second storage unit match,
    If it is determined that the acquired unique information and the unique information stored in the second storage unit do not match, the unique information stored in the second storage unit is set as the acquired unique information. Updating, and updating the replacement time stored in the second storage unit to the present time.
PCT/JP2019/001158 2019-01-16 2019-01-16 Absorbance detector, chromatograph, and method for managing light source replacement time WO2020148842A1 (en)

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