CA2126738A1 - Oxidizing gas detector paper - Google Patents

Oxidizing gas detector paper

Info

Publication number
CA2126738A1
CA2126738A1 CA 2126738 CA2126738A CA2126738A1 CA 2126738 A1 CA2126738 A1 CA 2126738A1 CA 2126738 CA2126738 CA 2126738 CA 2126738 A CA2126738 A CA 2126738A CA 2126738 A1 CA2126738 A1 CA 2126738A1
Authority
CA
Canada
Prior art keywords
butoxyaniline
paper
oxidizing gas
polyalcohol
ultraviolet absorber
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.)
Granted
Application number
CA 2126738
Other languages
French (fr)
Other versions
CA2126738C (en
Inventor
Nobuo Nakano
Akihiro Yamamoto
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.)
Riken Keiki KK
Original Assignee
Riken Keiki KK
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 Riken Keiki KK filed Critical Riken Keiki KK
Publication of CA2126738A1 publication Critical patent/CA2126738A1/en
Application granted granted Critical
Publication of CA2126738C publication Critical patent/CA2126738C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/8483—Investigating reagent band

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

A sheet of paper is immersed in a reacting solution prepared by dissolving p-n-butoxyaniline, an ultraviolet absorber and polyalcohol in an organic solvent. Then, the organic solvent is allowed to evaporate. Thus, the p-n-butoxyaniline and ultraviolet absorber are spread over the sheet of paper by using the water absorbed in the polyalcohol that serves as a medium for reaction. When the paper is exposed to chlorine or other oxidizing gas, the p-n-butoxyaniline colors, aided by the water absorbed in the, polyalcohol, to form a trace of reaction according to the concentration of the oxidizing gas. Because the ultraviolet absorber prevents the reaction between the p-n-butoxyaniline and light, no discoloration-induced sensitivity drop occurs during storage.
CA 2126738 1993-06-25 1994-06-24 Oxidizing gas detector paper Expired - Fee Related CA2126738C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP05180944A JP3092685B2 (en) 1993-06-25 1993-06-25 Oxidizing gas detection tape
JP180944/1993 1993-06-25

Publications (2)

Publication Number Publication Date
CA2126738A1 true CA2126738A1 (en) 1994-12-26
CA2126738C CA2126738C (en) 2004-10-12

Family

ID=16092012

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2126738 Expired - Fee Related CA2126738C (en) 1993-06-25 1994-06-24 Oxidizing gas detector paper

Country Status (2)

Country Link
JP (1) JP3092685B2 (en)
CA (1) CA2126738C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002367180A1 (en) 2001-12-27 2003-07-15 Arkray, Inc. Concentration measuring method
JP2006112914A (en) * 2004-10-14 2006-04-27 Riken Keiki Co Ltd Chlorine gas sensing material
EP2071328A4 (en) * 2006-10-02 2009-11-11 Nippon Telegraph & Telephone Ozone-detecting element
JP4880425B2 (en) * 2006-11-07 2012-02-22 日本電信電話株式会社 Ozone detector

Also Published As

Publication number Publication date
JP3092685B2 (en) 2000-09-25
JPH0712733A (en) 1995-01-17
CA2126738C (en) 2004-10-12

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20140625