JP4172779B2 - Louisite detector - Google Patents
Louisite detector Download PDFInfo
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- JP4172779B2 JP4172779B2 JP2003296432A JP2003296432A JP4172779B2 JP 4172779 B2 JP4172779 B2 JP 4172779B2 JP 2003296432 A JP2003296432 A JP 2003296432A JP 2003296432 A JP2003296432 A JP 2003296432A JP 4172779 B2 JP4172779 B2 JP 4172779B2
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Description
本発明は、びらん性毒ガスの一種であるルイサイトを検出する装置に関する。 The present invention relates to an apparatus for detecting lewisite, which is a kind of erosive poison gas.
テロなどの犯罪に使用されるびらん性毒ガスは、程度の極めて低い濃度で人体など生物に重篤な影響を与えるため、高い感度と選択性で、しかも可及的速やかに検出し、対策を施すことが必要となる。
すなわち、原因が分からないまま事態が進展すれば被害が拡大し人命は失われていく。一刻も早く中毒を引き起こす原因物質（中毒起因物質）が何であるかつきとめなければならない。被害者の診断による症状の情報のみからでは、適切な治療は行えない。毒の種類がわかれば解毒薬投与、処置等いくらでも対策が立てられる。極めて低濃度のびらん性毒ガスなどは、クロマトグラフ装置など実験室レベルで使用可能な分析機器により正確に検出できるものの、犯罪現場での使用は困難である。
Erosive toxic gases used in crimes such as terrorism have serious effects on living organisms such as the human body at extremely low concentrations. It will be necessary.
In other words, if the situation progresses without understanding the cause, the damage will expand and human lives will be lost. It must be determined what is the causative substance (toxic substance) that causes poisoning as soon as possible. Appropriate treatment cannot be performed only from information on the symptoms of the victim's diagnosis. If you know the type of poison, you can take as many measures as possible, including the administration of antidote and treatment. An extremely low concentration of erosive poison gas can be accurately detected by an analytical instrument that can be used at the laboratory level, such as a chromatograph, but it is difficult to use in crime scenes.
このような０．１ｍｇ／立方メートル程度の極めて濃度の低い毒ガスの検出は、ガスクロマトー質量分析装置など実験室レベルでは実用的な分析機器により簡単に検出できるものの、犯罪現場での使用は困難である。
このため、各種ガスセンサーや検知管等の現場で容易に使用できる検出手段の応用が検討されているが、未だ実用に供するのに十分な感度を引き出すまでには至っておらず、現実には現場に毒ガスが存在するか否かを判定するため、カナリアをセンサーとして使用されたこともあったが、濃度や種類、分布状況など、対策に必要となるデータを得ることはとても不可能である。
Although detection of such a poison gas with a very low concentration of about 0.1 mg / cubic meter can be easily detected by a practical analytical instrument such as a gas chromatograph mass spectrometer at a laboratory level, it is difficult to use in a crime scene. .
For this reason, the application of detection means that can be easily used in the field, such as various gas sensors and detector tubes, has been studied, but it has not yet reached a sufficient sensitivity for practical use. In order to determine whether or not poisonous gas exists, canary was used as a sensor, but it is very impossible to obtain data necessary for countermeasures such as concentration, type, and distribution status.
本発明はこのような事情に鑑みてなされたものであって、生物に影響を与える濃度が０．１ｍｇ／立方メートル程度のルイサイトをフィールドで簡単に検出することができる新規なルイサイト検出装置を提供することである。 The present invention has been made in view of such circumstances, and a novel leucite detection apparatus that can easily detect leucite having a concentration of about 0.1 mg / cubic meter that affects living organisms in the field. Is to provide.
本発明はこのような事情に鑑みてなされたものであって、生物に影響を与える３０程度濃度のルイサイトをフィールドで簡単に検出することができる新規なルイサイト検出装置を提供することである。 This invention is made in view of such a situation, Comprising: It is providing the novel leucite detection apparatus which can detect the leucite of about 30 density | concentration which affects living organisms easily in a field. .
このような問題を解消するために本発明においては、サンプリング装置からのガスを検出する検知材と、前記検知材の光学濃度を検出する光学濃度検知手段とを備え、前記検知材が、メチールオレンジ、メタニールイエロー、アザリンイエロー、ベンジルイエロー、メチルイエロー、メチールレッド、ベンジルオレンジ、トロペオリン、ブロモフェノールブルーから選ばれた水素イオン指示薬及び保湿剤を担体に展開して構成されている。 In order to solve such a problem, the present invention includes a detection material for detecting a gas from a sampling device and an optical density detection means for detecting an optical density of the detection material, wherein the detection material is methyl. It is composed of a hydrogen ion indicator and a moisturizer selected from orange, methanol yellow, azaline yellow, benzyl yellow, methyl yellow, methyl red, benzyl orange, tropeoline, and bromophenol blue .
ルイサイトを検知材に反応させて光学濃度の変化として検出できるため、特別な分析技術や設備を必要とすることなく、フィールドでの使用が可能となる。また、サンプリング時間を変更するだけで、同一の装置で緊急性を重視した検出と精度を重視した検出とに対応することができる。 Since Louisite can be detected as a change in optical density by reacting with a detection material, it can be used in the field without the need for special analysis techniques or equipment. In addition, by changing the sampling time, it is possible to cope with detection with an emphasis on urgency and detection with an emphasis on accuracy with the same device.
そこで以下に本発明の詳細を図示した実施例に基づいて説明する。
図１は、本発明の一実施例を示すものであって、検出手段１０は、検知材Ｓを、発光素子１１と受光素子１２とを備えた光学濃度検知手段としての測定ヘッド１３に、一定時間毎に搬送するテープ搬送機構１４と、サンプリングポンプ１５からの負圧を受けて、測定ヘッド１３と共同して検知材Ｓに被検ガスを接触させる吸引ヘッド１６とから構成されている。なお、図中符号１７は、検知材Ｓの未使用領域を測定領域に一定量送り出すための間欠駆動部を示す。
Therefore, details of the present invention will be described below based on the illustrated embodiment.
FIG. 1 shows an embodiment of the present invention. The detection means 10 applies a detection material S to a
ところで検知材Ｓは、水素イオン濃度指示薬、例えばメチルレッド０．２２ｗｔ％、バッファ溶液１７．５ミリリットル、及び保湿剤、例えばグリセリンやエチレングリコール等の多価アルコール１５ｍｌを、全量が１００ｍｌとなるようにメタノール等の易蒸発性有機溶媒に溶解した発色液に、セルロースを素材とするろ紙に含浸させ有機溶媒を揮散させて構成されている。 By the way, the detection material S has a hydrogen ion concentration indicator, for example, methyl red 0.22 wt%, a buffer solution 17.5 ml, and a moisturizing agent, for example, 15 ml of polyhydric alcohol such as glycerin or ethylene glycol, so that the total amount becomes 100 ml. It is configured by impregnating a filter paper made of cellulose into a color developing solution dissolved in an easily evaporable organic solvent such as methanol and volatilizing the organic solvent.
なお、水素イオン指示薬としては、メチールオレンジのほか、メタニールイエロー、アザリンイエロー、ベンジルイエロー、メチルイエロー、メチールレッド、ベンジルオレンジ、トロペオリン、ブロモフェノールブルーを使用することが出来る。 In addition to methyl orange, methanol yellow, azaline yellow, benzyl yellow, methyl yellow, methyl red, benzyl orange, tropeoline, and bromophenol blue can be used as the hydrogen ion indicator.
この検知材Ｓは、テープ状に裁断してカセットケースに収容して連続測定用に供したり、また紙片に成形して遮気性の袋に保管し、必要の都度、遮気性袋から取り出してバッチ測定に供したりすることができる。 This detection material S is cut into a tape shape and housed in a cassette case for continuous measurement, or formed into a piece of paper and stored in an airtight bag, and taken out from the airtight bag whenever necessary and batched. It can be used for measurement.
この実施例において、吸引ヘッド１６を引き下げて測定ヘッド１３との間に検知材Ｓを挿入し、再び吸引ヘッド１６を上昇させて測定ヘッド１３に対向する領域にサンプリングポンプ１５の吸引圧が作用するようにセットする。
ついで、濃度０．１ｍｇ／立方メートル程度のルイサイトを含むエアを時間３０秒だけ吸引すると、ルイサイトが検知材Ｓの一方の面から他方の面に通過し、検知材Ｓに担持されている発色剤と反応する。この際、検知材のシリカゲルや保湿剤が反応を促進することになる。
In this embodiment, the
Next, when air containing a leucite having a concentration of about 0.1 mg / cubic meter is sucked for 30 seconds, the leucite passes from one surface of the detection material S to the other surface, and the color carried on the detection material S. Reacts with the agent. At this time, silica gel or a humectant as a detection material accelerates the reaction.
このようにしてサンプリング時間が経過した時点で、測定ヘッド１３の発光素子１１と受光素子１２とにより、ガスを通過させる以前の光学濃度との差分を検出すると、図２に示したように光学的濃度がルイサイトの濃度に略比例して変化する。
When the sampling time elapses in this way and the difference between the optical density before the gas is passed is detected by the light emitting element 11 and the
もとより、検出手段１０を駆動できるに足る電源を商用電源や、バッテリから供給するだけで、特別な分析技術を必要とすることなく、極めて低い濃度のルイサイトを検出できるから、犯罪現場などのフィールドで使用可能となる。 Of course, it is possible to detect a very low concentration of lewisite without requiring a special analysis technique simply by supplying power sufficient to drive the detection means 10 from a commercial power supply or a battery. Can be used.
なお、上述の実施例においては、サンプリング時間を３０秒としたが、緊急性と検出感度との兼ね合いで、緊急性を要する場合には光学濃度の変化が検出できる程度に短縮し、またルイサイトの濃度を正確に知る必要がある場合には延長するなど、サンプリング時間を適宜変更すると、用途に合った検出が可能となる。 In the above-described embodiment, the sampling time is set to 30 seconds. However, the balance between the urgency and the detection sensitivity is shortened to the extent that the change in the optical density can be detected when the urgency is required. If the sampling time is appropriately changed, such as by extending it when it is necessary to accurately know the concentration, it is possible to perform detection suitable for the application.
１０ 検出手段 １３ 測定ヘッド Ｓ 検知材
DESCRIPTION OF
Claims (2)
前記検知材が、メチールオレンジ、メタニールイエロー、アザリンイエロー、ベンジルイエロー、メチルイエロー、メチールレッド、ベンジルオレンジ、トロペオリン、ブロモフェノールブルーから選ばれた水素イオン指示薬及び保湿剤を担体に展開して構成されているルイサイト検出装置。 A detection material for detecting gas from the sampling device, and an optical density detection means for detecting the optical density of the detection material,
The detection material is composed of a hydrogen ion indicator and a moisturizing agent selected from methyl orange, methanol yellow, azaline yellow, benzyl yellow, methyl yellow, methyl red, benzyl orange, tropeoline, and bromophenol blue on a carrier. The Louisite detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003296432A JP4172779B2 (en) | 2003-08-20 | 2003-08-20 | Louisite detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003296432A JP4172779B2 (en) | 2003-08-20 | 2003-08-20 | Louisite detector |
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| JP2005062135A JP2005062135A (en) | 2005-03-10 |
| JP4172779B2 true JP4172779B2 (en) | 2008-10-29 |
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| JP2003296432A Expired - Fee Related JP4172779B2 (en) | 2003-08-20 | 2003-08-20 | Louisite detector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007040934A (en) * | 2005-08-05 | 2007-02-15 | Riken Keiki Co Ltd | Agent for detecting organic-phosphorus-based nerve gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2926711C2 (en) * | 1979-07-03 | 1981-06-11 | Drägerwerk AG, 2400 Lübeck | Detector tubes for measuring arsenic trioxide aerosols in air |
| JP3206697B2 (en) * | 1993-06-25 | 2001-09-10 | 理研計器株式会社 | Acid gas detection paper |
| JPH09117735A (en) * | 1995-10-26 | 1997-05-06 | Masatoshi Ishikawa | Decomposing treatment of organic hetero compound such as poison gas by hydrothermal action |
| JP3034064U (en) * | 1996-04-01 | 1997-02-14 | 名古屋市 | Multi vacuum aspirator for portable detector tubes |
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