JPH05215708A - Method for automatically calibrating ph meter - Google Patents
Method for automatically calibrating ph meterInfo
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- JPH05215708A JPH05215708A JP4020341A JP2034192A JPH05215708A JP H05215708 A JPH05215708 A JP H05215708A JP 4020341 A JP4020341 A JP 4020341A JP 2034192 A JP2034192 A JP 2034192A JP H05215708 A JPH05215708 A JP H05215708A
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- meter
- conductivity
- time
- standard solution
- calibrating
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- Control Of Non-Electrical Variables (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ｐＨ計と導電率計が一
体となった導電率計一体型ｐＨ計を校正するｐＨ計自動
校正方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pH meter automatic calibration method for calibrating a pH meter integrated with a conductivity meter in which a pH meter and a conductivity meter are integrated.
【０００２】[0002]
【従来の技術】図３は、ｐＨ計とｐＨ校正液タンクを結
ぶ流路に設けられた電磁バルブの動作と、ｐＨ計内の試
料水とｐＨ標準液との流量の割合と、ｐＨ計のｐＨ値の
変化とを表した関係図である。この図３において前記電
磁バルブが作動してｐＨ標準液がｐＨ計に到達するまで
の時間をＡとし、ｐＨ計内の試料水がｐＨ標準液と完全
に入れ代わる液置換時間をＢとし、ｐＨ標準液が完全に
入れ代わってからｐＨ計のｐＨが安定するまでの電極応
答時間をＣとし、このＡ、Ｂ、Ｃの合計時間を予め測定
しておいてこの合計時間をタイマーに設定し、電磁バル
ブが開弁してからこの設定時間だけｐＨ標準液をｐＨ計
内に流してｐＨ計の自動校正を行なっていた。2. Description of the Related Art FIG. 3 shows an operation of an electromagnetic valve provided in a flow path connecting a pH meter and a pH calibration solution tank, a flow rate ratio of sample water and a pH standard solution in the pH meter, and a pH meter of the pH meter. It is a relationship diagram showing change of pH value. In FIG. 3, the time required for the pH standard solution to reach the pH meter upon actuation of the electromagnetic valve is A, and the solution replacement time for completely replacing the sample water in the pH meter with the pH standard solution is B. Let C be the electrode response time from when the liquid is completely replaced until the pH of the pH meter stabilizes. The total time of A, B, and C is measured in advance, and this total time is set in the timer. The pH standard solution was allowed to flow into the pH meter for this set time after the valve was opened, and the pH meter was automatically calibrated.
【０００３】しかし、流通型セルを用いたプロセス用ｐ
Ｈ計の自動校正を行なう場合、試料水やｐＨ標準液を流
す流路に温度変化などによって気泡ができて試料水やｐ
Ｈ標準液の流量が減少することがある。また、流路に汚
れなどが溜まってｐＨ標準液の流量が減少することもあ
る。ところが、前記のようにタイマーを使用してｐＨ標
準液の流量時間を一定に設定している場合にｐＨ標準液
の流量の減少によってｐＨ標準液の総量が少なくてｐＨ
の校正が適正に行なわれない場合があった。However, p for process using a distribution type cell
When the H meter is automatically calibrated, air bubbles are generated in the flow path for flowing the sample water and the pH standard solution due to temperature changes, etc.
The flow rate of the H standard solution may decrease. In addition, the flow rate of the pH standard solution may decrease due to the accumulation of dirt in the channel. However, when the flow time of the pH standard solution is set to be constant using the timer as described above, the total amount of the pH standard solution is small due to the decrease in the flow rate of the pH standard solution.
There was a case that the calibration of was not done properly.
【０００４】そこで、従来、ｐＨ標準液をｐＨ計に流入
させる時間を予め長めに設定しておいてその設定時間が
経過するまでｐＨ標準液を流し続けるという方法がとら
れていた。Therefore, conventionally, a method has been adopted in which the time for allowing the pH standard solution to flow into the pH meter is set long beforehand and the pH standard solution is kept flowing until the set time has elapsed.
【０００５】その他の方法としてｐＨ標準液を流す流路
に定量ポンプを取り付け、この定量ポンプによってｐＨ
計内に流れるｐＨ標準液の流量を一定に保ちｐＨの校正
が適正に行なわれるようにしていた。As another method, a metering pump is attached to the flow path of the pH standard solution, and the pH is adjusted by this metering pump.
The flow rate of the pH standard solution flowing in the meter was kept constant so that the pH was properly calibrated.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記従
来のｐＨ計の自動校正方法のうち、前者のように多めに
ｐＨ標準液をｐＨ計に流す場合は、当然にｐＨ標準液の
使用量が多くなりｐＨ標準液の貯蔵量が増えて、大きな
スペースを必要とするとともに、ランニングコストが高
くなるという問題点があった。また、後者の定量ポンプ
を使用する場合もコスト高になるという問題点があっ
た。However, of the above-mentioned conventional automatic calibration methods for pH meters, when the pH standard solution is flowed to the pH meter in a large amount like the former, the amount of pH standard solution used is naturally large. Therefore, there is a problem that the storage amount of the pH standard solution increases, a large space is required, and the running cost increases. In addition, there is a problem that the cost becomes high when the latter metering pump is used.
【０００７】本発明は、このような従来の問題点を解決
するためになされたもので、省スペースで、コストを下
げることのできるｐＨ計自動校正方法を提供することを
目的としている。The present invention has been made in order to solve such a conventional problem, and an object thereof is to provide a pH meter automatic calibration method which is space-saving and can reduce the cost.
【０００８】[0008]
【課題を解決するための手段】本発明のｐＨ計自動校正
方法は、ｐＨ計と導電率計が一体となった導電率計一体
型ｐＨ計にｐＨ標準液を流入させてｐＨを校正するｐＨ
計自動校正方法において、ｐＨ計とｐＨ校正液タンクを
結ぶ流路に設けられたバルブが開弁した時を基準時と
し、ｐＨ標準液が正常な状態の流路を流れ、前記基準時
からｐＨ計のｐＨを安定させるまでのｐＨ計基準安定時
間と、基準時から前記ｐＨ標準液によって導電率計の導
電率が変化するまでの導電率基準指示時間とを予め求
め、ｐＨ計を校正する際、基準時からｐＨ標準液によっ
て導電率計の導電率が変化するまでの導電率指示時間を
求め、この導電率指示時間と導電率基準指示時間との比
を前記ｐＨ計基準安定時間に積算して基準時からｐＨ計
のｐＨが安定するｐＨ計安定時間を演算し、このｐＨ計
安定時間だけｐＨ標準液をｐＨ計に流入させｐＨ計のｐ
Ｈを校正する。The pH meter automatic calibration method of the present invention is a method for calibrating a pH by allowing a pH standard solution to flow into a pH meter integrated with a conductivity meter in which a pH meter and a conductivity meter are integrated.
In the automatic meter calibration method, when the valve provided in the flow path connecting the pH meter and the pH calibration solution tank is opened as the reference time, the pH standard solution flows through the flow path in a normal state, and the pH is adjusted from the reference time. When calibrating the pH meter, the pH meter standard stabilization time until the pH of the meter is stabilized and the conductivity standard instruction time from the standard time until the conductivity of the conductivity meter changes due to the pH standard solution are obtained in advance. , The conductivity indicating time from the reference time until the conductivity of the conductivity meter changes by the pH standard solution is obtained, and the ratio of the conductivity indicating time and the conductivity reference indicating time is added to the pH meter reference stabilization time. Calculate the pH meter stabilization time for the pH of the pH meter to stabilize from the reference time, and allow the pH standard solution to flow into the pH meter for this pH meter stabilization time,
Calibrate H.
【０００９】[0009]
【作用】上記した構成により、ｐＨ計とｐＨ校正液タン
クを結ぶ流路に設けられたバルブが開弁した時を基準時
とし、ｐＨ標準液が泡などの障害物の無い正常な流路を
流れ、前記基準時からｐＨ計のｐＨを安定させるまでの
ｐＨ計基準安定時間と、基準時から前記ｐＨ標準液によ
って導電率計の導電率が変化するまでの導電率基準指示
時間とを予め求める。With the above structure, when the valve provided in the flow path connecting the pH meter and the pH calibration solution tank is opened as a reference time, the pH standard solution can be used as a normal flow path without obstacles such as bubbles. Flow, a pH meter reference stabilization time from the reference time until the pH of the pH meter is stabilized, and a conductivity reference instruction time from the reference time until the conductivity of the conductivity meter is changed by the pH standard solution are obtained in advance. ..
【００１０】ｐＨ校正時においてｐＨ標準液が泡などの
障害物のある流路を流れる場合はｐＨ標準液の流量は減
少する。ｐＨ標準液の流量の減少によって基準時からｐ
Ｈ計のｐＨが安定するｐＨ計安定時間と、基準時からｐ
Ｈ標準液によって導電率計の導電率が変化するまでの導
電率指示時間が伸びる。流路を流れるｐＨ標準液の流量
が一定であれば前記ｐＨ計安定時間と導電率指示時間の
伸びは比例する。When the pH standard solution flows through the flow path having obstacles such as bubbles during pH calibration, the flow rate of the pH standard solution decreases. p from the standard time due to the decrease in the flow rate of the pH standard solution
PH meter stabilization time for the pH of the H meter to stabilize and p from the standard time
The H standard solution increases the conductivity indicating time until the conductivity of the conductivity meter changes. If the flow rate of the pH standard solution flowing through the flow path is constant, the stabilization time of the pH meter and the elongation of the conductivity indicating time are proportional.
【００１１】そこで、以後、実際にｐＨ計を校正する場
合に導電率指示時間を求め、予め求めておいたｐＨ計基
準安定時間に導電率指示時間と導電率基準指示時間との
比を積算し、ｐＨ計安定時間を演算し、このｐＨ計安定
時間に基づいてｐＨ標準液をｐＨ計に流入させることに
よって無駄なｐＨ標準液の使用をなくし、ｐＨ標準液の
貯蔵量を少なくすることができる。また、定量ポンプな
どを使用することなく適正なｐＨ計の校正ができる。Therefore, after that, when actually calibrating the pH meter, the conductivity instructing time is obtained, and the ratio of the conductivity instructing time and the conductivity reference instructing time is added to the pH meter reference stabilization time which is obtained in advance. By calculating the pH meter stabilization time and flowing the pH standard solution into the pH meter based on this pH meter stabilization time, it is possible to eliminate the use of the unnecessary pH standard solution and reduce the storage amount of the pH standard solution. .. Further, it is possible to properly calibrate the pH meter without using a metering pump or the like.
【００１２】[0012]
【実施例】以下に本発明の一実施例を図１および図２に
基づいて説明する。図１は、本発明の一実施例のｐＨ計
自動校正方法に用いられる導電率一体型ｐＨ計の要部回
路図である。この図１において、１はｐＨ計であって、
上部にｐＨ電極２を有し、下部に導電率計３を備え、下
部入口４から流入した試料水５が、電極６で導電率が測
定され、ｐＨ電極２でｐＨが測定された後、上部出口７
から流出するよう構成されている。８は、ｐＨ７の標準
液９が貯留されたｐＨ標準液タンクであって、試料水５
が流れる流路１０と配管及び電磁バルブ１１を介して結
ばれている。電磁バルブ１１は試料水５とｐＨ標準液９
とを選択してｐＨ計１内に流すためのバルブである。な
お、１２はｐＨ９の標準液が貯留されたｐＨ標準液タン
ク、１３はｐＨ標準液１２をｐＨ計に流すための電磁バ
ルブ、１４はｐＨ電極内部液である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a circuit diagram of a main part of a pH meter with an integrated conductivity, which is used in a pH meter automatic calibration method according to an embodiment of the present invention. In FIG. 1, 1 is a pH meter,
The pH electrode 2 is provided on the upper portion, the conductivity meter 3 is provided on the lower portion, the conductivity of the sample water 5 flowing from the lower inlet 4 is measured by the electrode 6, and the pH is measured by the pH electrode 2, Exit 7
Is configured to drain from. Reference numeral 8 denotes a pH standard solution tank in which a standard solution 9 having a pH of 7 is stored.
Is connected to a flow path 10 through which a flow of water flows and a solenoid valve 11. Electromagnetic valve 11 is sample water 5 and pH standard solution 9
This is a valve for selecting and flowing into the pH meter 1. Reference numeral 12 is a pH standard solution tank in which a standard solution of pH 9 is stored, 13 is an electromagnetic valve for flowing the pH standard solution 12 to a pH meter, and 14 is a pH electrode internal solution.
【００１３】次に、本実施例のｐＨ計自動校正方法を説
明する。図２は前記図３の関係図に記載したものの他
に、導電率計における試料水とｐＨ標準液との流量の割
合、ｐＨ標準液導電率と試料水導電率の変化を表した関
係図である。Next, the pH meter automatic calibration method of this embodiment will be described. FIG. 2 is a relational diagram showing changes in the flow rate ratio of the sample water and the pH standard solution in the conductivity meter, and changes in the pH standard solution conductivity and the sample water conductivity, in addition to those shown in the relationship diagram of FIG. is there.
【００１４】まず、ｐＨ計１とｐＨ標準液タンク１２を
結ぶ流路１０に設けられた電磁バルブ１１が開弁した時
を基準時と定める。そして、ｐＨ標準液９が泡などの障
害物の無い正常な流路を流れ、前記基準時からｐＨ計１
のｐＨを安定させるまでのｐＨ計基準安定時間を測定す
る。このｐＨ計基準安定時間は、電磁バルブ１１が作動
してｐＨ標準液９がｐＨ計１に到達するまでの時間Ａ0
と、ｐＨ計１内の試料水５がｐＨ標準液９と完全に入れ
代わる液置換時間Ｂ0 と、ｐＨ標準液９が完全に入れ代
わってからｐＨ計１のｐＨが安定するまでの電極応答時
間Ｃ0 の合計時間である。次に、基準時からｐＨ標準液
９によって導電率計３の導電率が最初に変化するまでの
導電率基準指示時間Ｄ0 を求める。前記ｐＨ計基準安定
時間（Ａ0 ＋Ｂ0 ＋Ｃ0 ）と導電率基準指示時間Ｄ0 を
演算装置（図示せず）に記憶させておく。First, the time when the electromagnetic valve 11 provided in the flow path 10 connecting the pH meter 1 and the pH standard solution tank 12 is opened is defined as the reference time. Then, the pH standard solution 9 flows through a normal flow path free of obstacles such as bubbles, and the pH meter 1 is operated from the reference time.
Measure the standard stabilization time of the pH meter until the pH is stabilized. The pH meter reference stabilization time is the time A 0 until the pH standard solution 9 reaches the pH meter 1 by the operation of the electromagnetic valve 11.
And the liquid replacement time B 0 at which the sample water 5 in the pH meter 1 completely replaces the pH standard solution 9 and the electrode response time from the complete replacement of the pH standard solution 9 until the pH of the pH meter 1 stabilizes. It is the total time of C 0 . Next, the conductivity reference instruction time D 0 from the reference time until the conductivity of the conductivity meter 3 first changes by the pH standard solution 9 is obtained. The pH meter reference stabilization time (A 0 + B 0 + C 0 ) and the conductivity reference instruction time D 0 are stored in a computing device (not shown).
【００１５】次に、実際にｐＨ計１を校正する際、基準
時からｐＨ標準液９によって導電率計３の導電率が変化
するまでの導電率指示時間Ｄのみを求める。流路１０内
の気泡等の影響でｐＨ標準液９の流量が減少した場合
は、導電率指示時間Ｄが導電率基準指示時間Ｄ0 より伸
びる。導電率指示時間Ｄが伸びれば基準時からｐＨ標準
液９がｐＨ計１に到達するまでの時間Ａと、ｐＨ計１内
の試料水５がｐＨ標準液９と完全に入れ代わる液置換時
間Ｂと、ｐＨ標準液９が完全に入れ代わってからｐＨ計
１のｐＨが安定するまでの電極応答時間Ｃの合計時間
（ｐＨ計安定時間）が比例して伸びるが、その関係は以
下に述べる数１のようになる。Next, when actually calibrating the pH meter 1, only the conductivity indicating time D from the reference time until the conductivity of the conductivity meter 3 is changed by the pH standard solution 9 is obtained. When the flow rate of the pH standard solution 9 is reduced due to the influence of bubbles in the flow path 10, the conductivity instruction time D becomes longer than the conductivity reference instruction time D 0 . If the conductivity indicating time D extends, a time A from the reference time until the pH standard solution 9 reaches the pH meter 1 and a liquid replacement time B at which the sample water 5 in the pH meter 1 completely replaces the pH standard solution 9 , The total time of the electrode response time C (pH meter stabilization time) from the complete replacement of the pH standard solution 9 to the stabilization of the pH of the pH meter 1 (pH meter stabilization time) increases proportionally. become that way.
【００１６】[0016]
【数１】 [Equation 1]
【００１７】そこで、導電率指示時間Ｄを測定し、以下
の数２のように導電率指示時間Ｄと導電率基準指示時間
Ｄ0 との比をｐＨ計基準安定時間（Ａ0 ＋Ｂ0 ＋Ｃ0 ）
に積算すればｐＨ計安定時間（Ａ＋Ｂ＋Ｃ）が求められ
る。Therefore, the conductivity instructing time D is measured, and the ratio of the conductivity instructing time D and the conductivity reference instructing time D 0 is calculated by the following equation 2 to obtain a pH meter reference stabilization time (A 0 + B 0 + C 0). )
The pH meter stabilization time (A + B + C) can be calculated by adding
【００１８】[0018]
【数２】 [Equation 2]
【００１９】上記、ｐＨ計安定時間（Ａ＋Ｂ＋Ｃ）を演
算装置内のタイマーに設定し、電磁バルブ１１が開弁し
てからこの設定時間だけｐＨ標準液９をｐＨ計１内に流
せばｐＨ計１の適正な自動校正を行なうことができる。If the pH meter stabilization time (A + B + C) is set in the timer in the arithmetic unit, and the pH standard solution 9 is flown into the pH meter 1 for this set time after the electromagnetic valve 11 is opened, the pH meter 1 The proper automatic calibration of can be performed.
【００２０】[0020]
【発明の効果】以上のように本発明によれば、上記した
構成により、ｐＨ標準液の温度変化などによって流路内
に気泡が発生したり、流路内に汚れが溜まるなどの影響
でｐＨ標準液の流量が変化してもその変化を検出してｐ
Ｈ標準液の使用量を必要最小限におさえることによって
ｐＨ標準液タンクを小さくして省スペース化とランニン
グコストを下げることができる。しかも、流量変化を検
出するための新たな装置や定量ポンプを必要とせず製造
コストを低下することができる。As described above, according to the present invention, due to the above-mentioned constitution, the pH is affected by the bubbles generated in the channel due to the temperature change of the pH standard solution or the accumulation of dirt in the channel. Even if the flow rate of the standard solution changes, the change is detected and p
By keeping the amount of H standard solution used to a minimum, it is possible to make the pH standard solution tank smaller and save space and lower running costs. Moreover, a new device for detecting a change in the flow rate or a metering pump is not required, and the manufacturing cost can be reduced.
【図１】本発明の一実施例のｐＨ計自動校正方法に用い
られる導電率一体型ｐＨ計の要部回路図である。FIG. 1 is a circuit diagram of a main part of a conductivity-integrated pH meter used in a pH meter automatic calibration method according to an embodiment of the present invention.
【図２】本発明の電磁バルブの動作とｐＨ計内のｐＨ標
準液の状態を表した関係図である。FIG. 2 is a relational diagram showing the operation of the electromagnetic valve of the present invention and the state of the pH standard solution in the pH meter.
【図３】電磁バルブの動作とｐＨ計内のｐＨ標準液の状
態を表した関係図である。FIG. 3 is a relationship diagram showing the operation of the electromagnetic valve and the state of the pH standard solution in the pH meter.
１ ｐＨ計 ２ ｐＨ電極 ３ 導電率計 ５ 試料水 ８ ｐＨ標準液タンク ９ 標準液 10 流路 11 電磁バルブ A+B+C ｐＨ計安定時間 Ｄ 導電率指示時間 1 pH meter 2 pH electrode 3 Conductivity meter 5 Sample water 8 pH standard solution tank 9 Standard solution 10 Flow path 11 Electromagnetic valve A + B + C pH meter stabilization time D Conductivity instruction time
───────────────────────────────────────────────────── フロントページの続き (72)発明者 木下 喜代三 京都府京都市南区吉祥院新田二ノ段町68 京都電子工業株式会社内 (72)発明者 喜多 敏郎 京都府京都市南区吉祥院新田二ノ段町68 京都電子工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyozo Kinoshita 68 Kinoshoin Nittadancho, Kichijoin, Minami-ku, Kyoto City, Kyoto Prefecture Kyoto Electronics Industry Co., Ltd. 68 Ninodancho Kyoto Electronics Industry Co., Ltd.
Claims (1)
計一体型ｐＨ計にｐＨ標準液を流入させてｐＨを校正す
るｐＨ計自動校正方法において、ｐＨ計とｐＨ校正液タ
ンクを結ぶ流路に設けられたバルブが開弁した時を基準
時とし、ｐＨ標準液が正常な状態の流路を流れ、前記基
準時からｐＨ計のｐＨを安定させるまでのｐＨ計基準安
定時間と、基準時から前記ｐＨ標準液によって導電率計
の導電率が変化するまでの導電率基準指示時間とを予め
求め、ｐＨ計を校正する際、基準時からｐＨ標準液によ
って導電率計の導電率が変化するまでの導電率指示時間
を求め、この導電率指示時間と導電率基準指示時間との
比を前記ｐＨ計基準安定時間に積算して基準時からｐＨ
計のｐＨが安定するｐＨ計安定時間を演算し、このｐＨ
計安定時間だけｐＨ標準液をｐＨ計に流入させｐＨ計の
ｐＨを校正することを特徴とするｐＨ計自動校正方法。1. In a pH meter automatic calibration method for calibrating pH by flowing a pH standard solution into a pH meter integrated with a conductivity meter in which a pH meter and a conductivity meter are integrated, a pH meter and a pH calibration solution tank are provided. With the reference time when the valve provided in the connecting flow path is opened, the pH standard solution flows through the flow path in a normal state, and the pH meter reference stabilization time from the reference time until the pH of the pH meter is stabilized and , The conductivity reference instruction time from the reference time until the conductivity of the conductivity meter changes with the pH standard solution, and when calibrating the pH meter, the conductivity of the conductivity meter with the pH standard solution from the reference time The conductivity indicating time until the change occurs, the ratio between the conductivity indicating time and the conductivity reference indicating time is added to the pH meter reference stabilization time to calculate the pH from the reference time.
Calculate the pH meter stabilization time for the pH of the meter to stabilize
A method for automatically calibrating a pH meter, which comprises calibrating the pH of a pH meter by allowing a pH standard solution to flow into the pH meter for a stable time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4020341A JPH05215708A (en) | 1992-02-06 | 1992-02-06 | Method for automatically calibrating ph meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4020341A JPH05215708A (en) | 1992-02-06 | 1992-02-06 | Method for automatically calibrating ph meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05215708A true JPH05215708A (en) | 1993-08-24 |
Family
ID=12024439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4020341A Pending JPH05215708A (en) | 1992-02-06 | 1992-02-06 | Method for automatically calibrating ph meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05215708A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016188819A (en) * | 2015-03-30 | 2016-11-04 | 国立大学法人高知大学 | Chemical sensor calibration device |
| JP2017187373A (en) * | 2016-04-05 | 2017-10-12 | 東芝メディカルシステムズ株式会社 | Automatic analyzer |
| WO2022074814A1 (en) * | 2020-10-09 | 2022-04-14 | 三菱重工業株式会社 | Analysis system and management system, and analysis method and analysis program |
-
1992
- 1992-02-06 JP JP4020341A patent/JPH05215708A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016188819A (en) * | 2015-03-30 | 2016-11-04 | 国立大学法人高知大学 | Chemical sensor calibration device |
| JP2017187373A (en) * | 2016-04-05 | 2017-10-12 | 東芝メディカルシステムズ株式会社 | Automatic analyzer |
| WO2022074814A1 (en) * | 2020-10-09 | 2022-04-14 | 三菱重工業株式会社 | Analysis system and management system, and analysis method and analysis program |
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