Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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A Study on a Passive Sampler for Indoor Formaldehyde Using Methyl Yellow and Methyl Orange Indicator

Methyl yellow와 Methyl orange 지시약을 이용한 실내공기중의 포름알데히드 간이측정기에 대한 연구

  • 정상진 (경기대학교 토목환경공학부 환경공학전공) ;
  • 장재철 (경기대학교 토목환경공학부 환경공학전공)
  • Published : 2004.12.01
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Abstract

A passive sampler has been developed for measuring formaldehyde in air using methyl yellow and methyl orange indicator. It is based on the color change of the TLC plate on reaction with formaldehyde. TLC plates impregnated with three kinds of solutions containing methyl orange, methyl yellow, mixing of methyl yellow and methyl orange were shown rectilinear response to formaldehyde concentration at constant exposure time. The color change of impregnated TLC plate with criteria air pollution, such as NO$_2$, SO$_2$, CO, $O_3$ was investigated. The color change of TLC plate with $O_3$ is larger than other gases.

Keywords

References

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