An Electrochemical Monitor for Air Pollutants
作者:
J.R. Kuempel,
W.D. Shults,
期刊:
Analytical Letters
(Taylor Available online 1971)
卷期:
Volume 4,
issue 2
页码: 107-116
ISSN:0003-2719
年代: 1971
DOI:10.1080/00032717108058598
出版商: Taylor & Francis Group
关键词: Electrochemical monitor;sulfur dioxide;chlorine;air pollutant monitor
数据来源: Taylor
摘要:
A thin-layer electrochemical cell has been developed as a detector for air pollutants, and tested with S02-air and Cl2-air mixtures. The cell gives well-defined, reproducible signals proportional to pollutant concentrations down to 20 ppb. Two electroanalytical procedures are described for monitoring or sampling polluted air with the cell: (1) a controlled-potential experiment in which the current-time response of the cell is related to pollutant concentration, and (2) an experiment similar to stripping analysis in which pollutants are first accumulated at an electrode surface under controlled potential conditions, and then analyzed voltammetrically.
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