Detection of Hydrogen Chloride Gas in Ambient Air with a Coated Piezoelectric Quartz Crystal

J. Hlavay, G. G. Guilbault

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

New methods for the selective detection of hydrogen chloride gas in ambient air in the ppm and ppb concentration range are presented. Triphenylamine and trimethylamine'HCI are the substrates used as coatings. The response times observed using either coatings are less than 30 s. Ammonia and moisture could cause Interference problems using TMA-HCI as the coating material. The application of a gas chromatographic column packed with silica gel eliminates the effect of moisture.

Original languageEnglish
Pages (from-to)965-967
Number of pages3
JournalAnalytical Chemistry
Volume50
Issue number7
DOIs
Publication statusPublished - Jan 1 1978

ASJC Scopus subject areas

  • Analytical Chemistry

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