Detection of amines by using the depolymerization of poly(chloroaldehydes)

A detector tube is described in which amine vapors cause decomposition of a chloral-dichloroacetaldehyde copolymer. Detection signal is based on the dissolution of the dye pinacyanole by the liberated chloroacetaldehyde monomers. Of the 77 amines tested, ammonia, allylamine, n-butylamine, isobutylam...

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Bibliographic Details
Published in:Microchemical journal 1971-01, Vol.16 (1), p.24-36
Main Authors: Novak, Thaddeus J., Poziomek, Edward J.
Format: Article
Language:English
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Summary:A detector tube is described in which amine vapors cause decomposition of a chloral-dichloroacetaldehyde copolymer. Detection signal is based on the dissolution of the dye pinacyanole by the liberated chloroacetaldehyde monomers. Of the 77 amines tested, ammonia, allylamine, n-butylamine, isobutylamine, sec-butylamine, cyclohexylamine, diethylamine, dibutylamine, dipropylamine, and piperidine gave strongest tests. The limit of detection of diethylamine is approximately 2 μg. The sensitivity is increased about one order of magnitude if solution techniques are employed. Interferences appear to be few since 71 compounds representing 21 classes of compounds did not give a test.
ISSN:0026-265X
1095-9149
DOI:10.1016/0026-265X(71)90078-6