JPS6066155A - Detector for light absorption and ionization - Google Patents
Detector for light absorption and ionizationInfo
- Publication number
- JPS6066155A JPS6066155A JP17549483A JP17549483A JPS6066155A JP S6066155 A JPS6066155 A JP S6066155A JP 17549483 A JP17549483 A JP 17549483A JP 17549483 A JP17549483 A JP 17549483A JP S6066155 A JPS6066155 A JP S6066155A
- Authority
- JP
- Japan
- Prior art keywords
- light
- sample gas
- ionization
- light absorption
- ionization chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000031700 light absorption Effects 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 30
- 238000004458 analytical method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- -1 alkali metal salt Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
- G01N27/66—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
この発明は、試料ガスの光吸収と光によるイオン化とを
共に検出しうる光吸収イオン化検出器に関し、ガスクロ
マトグラフ用検出器として特に定性分析で有用である。Detailed Description of the Invention (a) Industrial Application Field The present invention relates to a light absorption ionization detector that can detect both light absorption and light ionization of a sample gas, and is particularly useful as a gas chromatograph detector for qualitative analysis. It is useful in
（ロ）従来技術
試料ガスの光によるイオン化を抽出しうる検出器として
、光電離検出器（Ｐより）が知られて０る。(b) Prior Art A photoionization detector (from P) is known as a detector capable of extracting ionization of a sample gas by light.
しかしＰよりでは試料ガスの光吸収を調べることはでき
ないから、光吸収を調べたいときには別個に発光手段と
光検出手段とを試料ガス流路に設ける必要があり、構造
的に複雑になると共に検出器部分の占有空間が大きくな
りすぎる不都合がある。However, it is not possible to examine the optical absorption of the sample gas using P, so when you want to examine the optical absorption, it is necessary to separately install a light emitting means and a light detecting means in the sample gas flow path, which makes the structure complicated and the detection There is an inconvenience that the space occupied by the container becomes too large.
Ｐ号 発明の目的
この発明は、試料ガスの光によるイオン化と光の吸収と
を共に検出可能で、構造か簡単でかつ小型に椅成しうる
ガスクロマトグラフ用検出器を提供することを目的とす
る。No. P Purpose of the Invention The object of the present invention is to provide a gas chromatograph detector that can detect both light ionization and light absorption of a sample gas, has a simple structure, and can be made compact. .
に）発明の構成
この発明の検出器は、試料ガスの光吸収と光によるイオ
ン化とを共に検出するものであるから、光吸収イオン化
検出器と称しつるものであり、試料ガス入口と出口とを
有する試料ガスイオン化室、その試料ガスイオン化室の
片側に設けられ試料ガスイオン化室内に波長２００ ｎ
ｍ以下の紫外線を放出しうる発光手段、前記試料ガスイ
オン化室の他側に前記発光手段と対向して設けられる光
検出手段および前記発光手段から前記光検出手段へ透過
する光線を実質的に遮きらないような位置で前記試料ガ
スイオン化室内に設けられるイオン検出手段を具備して
構成される。B) Structure of the Invention The detector of the present invention detects both light absorption and light-induced ionization of the sample gas, so it is called a light absorption ionization detector. A sample gas ionization chamber with a wavelength of 200 nm provided on one side of the sample gas ionization chamber.
a light-emitting means capable of emitting ultraviolet light of less than m, a light-detecting means provided opposite to the light-emitting means on the other side of the sample gas ionization chamber, and substantially blocking light rays transmitted from the light-emitting means to the light detecting means. The sample gas ionization chamber is provided with an ion detection means provided in the sample gas ionization chamber at a position where the sample gas ionization chamber is not exposed.
発光手段から放射する光を波長２００ ｎｍ以下の紫外
光としたのは、ガスによる光の吸収を検出するには波長
が２００ ｎｍより大きいと困ｈトになることおよびガ
スをイオン化するには波長１５０ ｎｍ以下か好ましい
ことによる。The reason why the light emitted from the light emitting means is ultraviolet light with a wavelength of 200 nm or less is because it is difficult to detect the absorption of light by gas if the wavelength is larger than 200 nm, and the wavelength is too short to ionize the gas. This is because it is preferably 150 nm or less.
（ホ）実施例
図に示す（１）は、この発明の光吸収イオン化検出器の
一実施例であり、試料カスイオン化室（２）、真空紫外
ランプ（３）、光電管（４）、直圧電極（５りおよびコ
レクタ電極（５ｂ〕から基本的に４１４成されている。(e) Example (1) shown in the diagram is an example of the light absorption ionization detector of the present invention, which includes a sample waste ionization chamber (2), a vacuum ultraviolet lamp (3), a phototube (4), and a direct pressure It basically consists of 414 electrodes (5 electrodes) and a collector electrode (5b).
試料ガスイオン化室（２）は、ｙ７１絶縁形セラミック
にて形成みれており、下方に試料ガス入口（２す、上方
に試料ガス出口（２ｂＪがある。ガスクロマトグラフの
カラム（Ｓ）から送られてきた試料ガスは、試料ガスイ
オン化室（２）の内部を下から上に流れ、外部へ排出さ
れる。The sample gas ionization chamber (2) is made of Y71 insulating ceramic, and has a sample gas inlet (2) at the bottom and a sample gas outlet (2bJ) at the top. The sample gas flows from the bottom to the top inside the sample gas ionization chamber (2) and is discharged to the outside.
真空紫外ランプ（３）は、試料ガスイオン化室（２）の
片側に設けられ、アルカリ金属塩からなる窓（６）を通
じて試料ガスイオン化室（２）内に高エネルギー光を照
射する。（３ａＪ（３ｂＪはランプ（３）の電極である
。A vacuum ultraviolet lamp (3) is provided on one side of the sample gas ionization chamber (2) and irradiates high-energy light into the sample gas ionization chamber (2) through a window (6) made of an alkali metal salt. (3aJ (3bJ is the electrode of the lamp (3).
光電管（４）は、試料ガスイオン化室（２）を介して真
空紫外ランプ（３）と対向した位置に設けξれている。The phototube (4) is provided at a position facing the vacuum ultraviolet lamp (3) via the sample gas ionization chamber (2).
アルカリ金ｆｆｆｔ塩からなる窓（７）を通じて受光し
た光の強さに応じた光電流が流れ、その光電流はエレク
トロメータで電圧に変換されてレコーダに記録される。A photocurrent corresponding to the intensity of the received light flows through the window (7) made of alkali gold ffft salt, and the photocurrent is converted into voltage by an electrometer and recorded on a recorder.
これにより試料ガス中の光吸収物質を検出できる。This makes it possible to detect light-absorbing substances in the sample gas.
高圧電極（５ａ）およびコレクタ電極（５ｂ）は、イオ
ン検出手段を構成するものである。試料ガスか試料ガス
イオン化室（２）内で高エネルギー光のエネルギーを受
けてイオン化すると、そのイオンは高圧電極（５ａ）で
加速され、コレクタ電極（５ｂ）にあつめられ、イオン
電流が流れる。そのイオン電流はエレクトロメータで電
圧に変換されてレコーダに記録される。これにより試料
ガス中のイオン化物質を検出できる。The high voltage electrode (5a) and the collector electrode (5b) constitute ion detection means. When the sample gas is ionized by the energy of high-energy light in the sample gas ionization chamber (2), the ions are accelerated by the high-voltage electrode (5a) and collected at the collector electrode (5b), causing an ion current to flow. The ion current is converted into voltage by an electrometer and recorded on a recorder. This allows detection of ionized substances in the sample gas.
他の実施例としては、発光手段として窓のないヘリウム
やアルゴン放電管を用いるもの、光検出手段として光電
子増倍管を用いるもの等が挙げられる。Other examples include those using a windowless helium or argon discharge tube as the light emitting means, and those using a photomultiplier tube as the light detection means.
（へ）発明の効果
この発明の光吸収イオン化検出器によれば、試料ガスの
イオン化と光吸収の両方の情報が得られるから、いずれ
か一方だけよりも定性において効果的な分析を行うこと
ができる。とりわけ有用な分析対象としては、キャピラ
リーカラムによる医薬品の分析を挙げることができる。(f) Effects of the Invention According to the light absorption ionization detector of the present invention, information on both ionization and light absorption of the sample gas can be obtained, so it is possible to perform qualitatively more effective analysis than using either one alone. can. A particularly useful analysis target is the analysis of pharmaceuticals using a capillary column.
さらにこの発明の光吸収イオン化検出器は、占有スペー
スが小さいので、分析装置を小型に構成できる利点があ
る。Furthermore, since the light absorption ionization detector of the present invention occupies a small space, there is an advantage that the analyzer can be constructed in a compact size.
第１図はこの発明の光吸収イオン化検出器の一実施例の
縦断面構成説明図、第２図は同横断面構成説明図である
。
（１）・・・光吸収イオン検出器、
（２）・・・試料ガスイオン化室、
（３）・・・真空紫外ランプ、 （４）・・・光電管、
（５す・・・高圧電極、 （５ｂＪ・・・コレクタ電極
。FIG. 1 is an explanatory diagram of a vertical cross-sectional configuration of an embodiment of a light absorption ionization detector of the present invention, and FIG. 2 is an explanatory diagram of a cross-sectional configuration of the same. (1)...Light absorption ion detector, (2)...Sample gas ionization chamber, (3)...Vacuum ultraviolet lamp, (4)...Phototube,
(5s...high voltage electrode, (5bJ...collector electrode).
Claims (1)
、その試料ガスイオン化室の片側に設けられ試料ガスイ
オン化室内に波長２００ ｎｍ以下の紫外線を放出しつ
る発光手段、前記試料ガスイオン化室の他側に前記発光
手段と対向して設けられる光検出手段および前記発光手
段から前記光検出手段へ透過する光線を実質的に遮ぎら
ないような位置で前記試料ガスイオン化室内に設けられ
るイオン検出手段を具備してなる光吸収イオン化検出器
。 ２、試料ガスイオン化室が、高絶縁形セラミックにて形
成されてなる請求の範囲第１項記載の光吸収イオン化検
出器。 ３、発光手段か、真空紫外ランプからなる請求の範囲第
１項または第２項記載の光吸収イオン化検出器。 ４、光検出手段が、光電管からなる請求の範囲第１項〜
第３項のいずれかに記載の光吸収イオン化検出器。 ５、イオン検出手段が、直圧電極およびコレクタからな
る請求の範囲第１項〜第４項のいずれかに記載の光吸収
イオン化検出器。[Scope of Claims] 1. A sample gas ionization chamber having a sample gas inlet and an outlet, a light emitting means provided on one side of the sample gas ionization chamber and emitting ultraviolet rays with a wavelength of 200 nm or less into the sample gas ionization chamber; A light detection means provided opposite the light emitting means on the other side of the sample gas ionization chamber, and a light detection means provided in the sample gas ionization chamber at a position that does not substantially block the light beam transmitted from the light emission means to the light detection means. A light absorption ionization detector comprising ion detection means provided. 2. The light absorption ionization detector according to claim 1, wherein the sample gas ionization chamber is made of highly insulating ceramic. 3. The light absorption ionization detector according to claim 1 or 2, which comprises a light emitting means or a vacuum ultraviolet lamp. 4. Claims 1 to 4, wherein the light detection means comprises a phototube.
The light absorption ionization detector according to any one of Item 3. 5. The light absorption ionization detector according to any one of claims 1 to 4, wherein the ion detection means comprises a direct pressure electrode and a collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17549483A JPS6066155A (en) | 1983-09-21 | 1983-09-21 | Detector for light absorption and ionization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17549483A JPS6066155A (en) | 1983-09-21 | 1983-09-21 | Detector for light absorption and ionization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6066155A true JPS6066155A (en) | 1985-04-16 |
Family
ID=15997018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17549483A Pending JPS6066155A (en) | 1983-09-21 | 1983-09-21 | Detector for light absorption and ionization |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6066155A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994012860A2 (en) * | 1992-12-03 | 1994-06-09 | Photovac Incorporated | System for the detection of noxious contaminants in beverage and potable water containers |
| EP0995989A1 (en) * | 1998-10-22 | 2000-04-26 | Rae Systems, Inc. | Photo-ionization detector for volatile gases |
| WO2009068218A1 (en) * | 2007-11-27 | 2009-06-04 | Eads Deutschland Gmbh | Laser multi-sensor system for the selective trace analysis of organic material |
| JP2015532433A (en) * | 2012-10-18 | 2015-11-09 | ブイユーブイ・アナリティクス・インコーポレイテッドＶＵＶ Ａｎａｌｙｔｉｃｓ，Ｉｎｃ． | Vacuum ultraviolet absorption spectroscopy system and method |
-
1983
- 1983-09-21 JP JP17549483A patent/JPS6066155A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994012860A2 (en) * | 1992-12-03 | 1994-06-09 | Photovac Incorporated | System for the detection of noxious contaminants in beverage and potable water containers |
| WO1994012860A3 (en) * | 1992-12-03 | 1994-08-04 | Photovac Inc | System for the detection of noxious contaminants in beverage and potable water containers |
| EP0995989A1 (en) * | 1998-10-22 | 2000-04-26 | Rae Systems, Inc. | Photo-ionization detector for volatile gases |
| WO2009068218A1 (en) * | 2007-11-27 | 2009-06-04 | Eads Deutschland Gmbh | Laser multi-sensor system for the selective trace analysis of organic material |
| US8288713B2 (en) | 2007-11-27 | 2012-10-16 | Eads Deutschland Gmbh | Laser multi-sensor system for the selective trace analysis of organic materials |
| JP2015532433A (en) * | 2012-10-18 | 2015-11-09 | ブイユーブイ・アナリティクス・インコーポレイテッドＶＵＶ Ａｎａｌｙｔｉｃｓ，Ｉｎｃ． | Vacuum ultraviolet absorption spectroscopy system and method |
| US9465015B2 (en) | 2012-10-18 | 2016-10-11 | Vuv Analytics, Inc. | Vacuum ultraviolet absorption spectroscopy system and method |
| US9891197B2 (en) | 2012-10-18 | 2018-02-13 | Vuv Analytics, Inc. | Vacuum ultraviolet absorption spectroscopy system and method |
| US9976996B2 (en) | 2012-10-18 | 2018-05-22 | Vuv Analytics, Inc. | Vacuum ultraviolet absorption spectroscopy system and method |
| US10338040B2 (en) | 2012-10-18 | 2019-07-02 | Vuv Analytics, Inc. | Vacuum ultraviolet absorption spectroscopy system and method |
| US10641749B2 (en) | 2012-10-18 | 2020-05-05 | Vuv Analytics, Inc. | Vacuum ultraviolet absorption spectroscopy system and method |
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