Rapid Semiquantitative Determination of Hydrogen Cyanide in Air.

被引:0
作者
Kratochvil, V. [1 ]
机构
[1] Vyzkumny ustav organickych syntez, Pardubice, Czech, Vyzkumny ustav organickych syntez, Pardubice, Czech
来源
Chemicky prumysl | 1987年 / 37卷
关键词
AIR POLLUTION - Analysis - ATMOSPHERIC COMPOSITION - CYANIDES;
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摘要
The colour reaction based on acyloin condensation of 4-nitrobenzaldehyde in weakly basic media, catalysed by CN- ions, was used for a rapid, semiquantitative determination of hydrogen cyanide in air. The principle was used for detection pencils and detection tubes. Owing to the good sensitivity (1 mu g HCN in 1 liter of air), the detection principle can be used for monitoring HCN concentration in air of various chemical plants.
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