JPS5560840A - Concentration measurement on material contained in gas - Google Patents

Concentration measurement on material contained in gas

Info

Publication number
JPS5560840A
JPS5560840A JP13311978A JP13311978A JPS5560840A JP S5560840 A JPS5560840 A JP S5560840A JP 13311978 A JP13311978 A JP 13311978A JP 13311978 A JP13311978 A JP 13311978A JP S5560840 A JPS5560840 A JP S5560840A
Authority
JP
Japan
Prior art keywords
light
detected
color
cylinder
gas
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
Application number
JP13311978A
Other languages
Japanese (ja)
Inventor
Yukio Murakami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP13311978A priority Critical patent/JPS5560840A/en
Publication of JPS5560840A publication Critical patent/JPS5560840A/en
Pending legal-status Critical Current

Links

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
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

PURPOSE:For highly sensitive concentration measurement for a material, a gas containing a material to be tested is introduced into a rotating container internally coated with color-developing reagent layer, and the reacted, color-developed material is measured by photometry. CONSTITUTION:While rotating the cylinder a, a color developing reagent (e.g. aqueous solution of N-(1-naphthyl)-ethylene diamine hydrochloric acid salt and sulphanyl amide) is injected from the top and formed into a uniform liquid layer f by centrifugal force of rotating cylinder a. The liquid layer f is projected by the light sources g1, g2 and the transmitted light is reflected several times by the external surface h1-h3, then detected by the light receiver i. From the inlet c, a gas containing a material to be detected (e.g. nitrogen oxide) is instroduced into the cylinder a, reacted with the light developing reagent, and detected by the light receiver i. The measurement is made on the time differential of variable values of received light, giving the concentration of the material contained (i.e. nitrogen oxide) in the gas.
JP13311978A 1978-10-31 1978-10-31 Concentration measurement on material contained in gas Pending JPS5560840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13311978A JPS5560840A (en) 1978-10-31 1978-10-31 Concentration measurement on material contained in gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13311978A JPS5560840A (en) 1978-10-31 1978-10-31 Concentration measurement on material contained in gas

Publications (1)

Publication Number Publication Date
JPS5560840A true JPS5560840A (en) 1980-05-08

Family

ID=15097225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13311978A Pending JPS5560840A (en) 1978-10-31 1978-10-31 Concentration measurement on material contained in gas

Country Status (1)

Country Link
JP (1) JPS5560840A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6042645A (en) * 1983-08-19 1985-03-06 Dan Kagaku:Kk Gas sensor for semiconductor process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6042645A (en) * 1983-08-19 1985-03-06 Dan Kagaku:Kk Gas sensor for semiconductor process

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