JPS62121336A - Mercury vapor detector - Google Patents
Mercury vapor detectorInfo
- Publication number
- JPS62121336A JPS62121336A JP26109085A JP26109085A JPS62121336A JP S62121336 A JPS62121336 A JP S62121336A JP 26109085 A JP26109085 A JP 26109085A JP 26109085 A JP26109085 A JP 26109085A JP S62121336 A JPS62121336 A JP S62121336A
- Authority
- JP
- Japan
- Prior art keywords
- mercury vapor
- cylinder
- detector
- gas
- measured
- 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
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は水銀蒸気の検知に係り、特に持運びに簡便な検
知器に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to the detection of mercury vapor, and particularly to a detector that is easy to carry.
従来特開昭５３−４３５９１号公報のように原子吸光分
析器にて水銀の検知が行なわれているが、供試物が気体
の場合は、一旦溶媒に溶かし原子吸光にかけるという手
間をかけている。また原子吸光分析器は比較的大きく、
持ち運べるものではない。このため気体中の水銀を簡便
に測定できる軽量な装置が望まれている。Conventionally, mercury has been detected using an atomic absorption spectrometer as disclosed in Japanese Patent Application Laid-Open No. 53-43591, but when the sample is a gas, it takes the trouble of first dissolving it in a solvent and subjecting it to atomic absorption spectrometry. There is. Atomic absorption spectrometers are also relatively large;
It's not something you can carry around. Therefore, a lightweight device that can easily measure mercury in gas is desired.
本発明の目的は、水銀蒸気を含む気体を供試気体とし、
簡便に測定でき、かつ持運びも可能な水銀蒸気検知器を
提供することにある。The purpose of the present invention is to use a gas containing mercury vapor as a test gas,
It is an object of the present invention to provide a mercury vapor detector that can be easily used for measurement and is also portable.
水銀蒸気の水銀共鳴線吸収作用を利用し、かつ気体を気
体として使用するという発想から次の構造とした。紫外
線源１から発生した２５４μｍ紫外線を気体が流れてい
る闇２内に透過させ、透過光を紫外線検知器３で検知す
る。筒内に流す気体を供試気体および標準気体（水銀蒸
気を含まない空気等）と置換することにより、その紫外
線透過量の比較により水銀蒸気量を検出する。The following structure was created based on the idea of utilizing the mercury resonance line absorption effect of mercury vapor and using gas as a gas. 254 μm ultraviolet light generated from an ultraviolet source 1 is transmitted into a darkness 2 in which gas is flowing, and the transmitted light is detected by an ultraviolet detector 3. By replacing the gas flowing into the cylinder with a test gas and a standard gas (such as air that does not contain mercury vapor), the amount of mercury vapor is detected by comparing the amount of ultraviolet light transmitted.
以下、本発明の一実施例を第１図により説明する。 An embodiment of the present invention will be described below with reference to FIG.
紫外線源１として、石英ガラス製低圧水銀蒸気放電ラン
プ（管長６５咽、ランプ電力５Ｗ）を用い、筒２として
内径φ８、長さ２００ｍのステンレス筒を用い、間２の
両端に石英ガラス４，４′を取付けた。また紫外線検知
器３としてＣ５−’ｆ：ｅを電柵とした光電管を用いた
。また光電管に流れる光電流は電流計５により測定した
。A low-pressure mercury vapor discharge lamp made of quartz glass (tube length: 65 mm, lamp power: 5 W) was used as the ultraviolet light source 1, a stainless steel tube with an inner diameter of φ8 and a length of 200 m was used as the tube 2, and quartz glasses 4 and 4 were installed at both ends of the gap 2. ' was installed. Further, as the ultraviolet detector 3, a phototube with C5-'f:e as an electric fence was used. Further, the photocurrent flowing through the phototube was measured using an ammeter 5.
膀２内に空気を流し、次に節２内に水銀蒸気を含む空気
を流し、それぞれの光電流を測定したところ、下表のご
とくなり、水銀蒸気の検知に成功した。When air was flowed into the bladder 2 and then air containing mercury vapor was flowed into the node 2, the respective photocurrents were measured, as shown in the table below, and mercury vapor was successfully detected.
＊ 水銀蒸気分圧０．００５Ｔｏｒｒ
〔発明の効果〕
本発明によれば、供試気体を、溶媒に溶かす必要はなく
、装置も簡単で、持運びすることができる。かつ微量の
水銀蒸気を検出することができるため、広く使用できる
ものである。*Mercury vapor partial pressure 0.005 Torr [Effects of the Invention] According to the present invention, there is no need to dissolve the test gas in a solvent, and the apparatus is simple and portable. Moreover, it can detect trace amounts of mercury vapor, so it can be used widely.
第１図は本発明の一実施例になる検知器の構成図である
。
１・・・紫外線源、２・・・筒、３・・・紫外線検知器
、４・・・石英ガラス、５・・・電流計、６・・・紫外
線源用電源。FIG. 1 is a block diagram of a detector according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Ultraviolet source, 2... Tube, 3... Ultraviolet detector, 4... Quartz glass, 5... Ammeter, 6... Power supply for ultraviolet source.
Claims (1)
外線透過窓がつき、その中に気体を流すことができる筒
と、２５４μｍの紫外線を検知する検知器とからなり、
紫外線が、紫外線源から筒内および検知器の順に通過し
、紫外線の通路に供試気体が流れることを特徴とする水
銀蒸気検知器。It consists of an ultraviolet source that generates 254 μm ultraviolet light, a tube with ultraviolet transmitting windows on both ends that allows gas to flow through it, and a detector that detects 254 μm ultraviolet light.
A mercury vapor detector characterized in that ultraviolet light passes from the ultraviolet source to the cylinder and the detector in this order, and a test gas flows through the ultraviolet path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26109085A JPS62121336A (en) | 1985-11-22 | 1985-11-22 | Mercury vapor detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26109085A JPS62121336A (en) | 1985-11-22 | 1985-11-22 | Mercury vapor detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62121336A true JPS62121336A (en) | 1987-06-02 |
Family
ID=17356941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26109085A Pending JPS62121336A (en) | 1985-11-22 | 1985-11-22 | Mercury vapor detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62121336A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007268427A (en) * | 2006-03-31 | 2007-10-18 | Nippon Instrument Kk | Mercury-reducing catalyst, mercury-converting unit, and measuring device using the unit for measuring whole mercury in exhaust gas |
-
1985
- 1985-11-22 JP JP26109085A patent/JPS62121336A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007268427A (en) * | 2006-03-31 | 2007-10-18 | Nippon Instrument Kk | Mercury-reducing catalyst, mercury-converting unit, and measuring device using the unit for measuring whole mercury in exhaust gas |
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