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CISDOC database

Document ID (ISN)37679
CIS number 82-734
ISSN - Serial title 0021-9673 - Journal of Chromatography
Year 1981
Convention or series no.
Author(s) Goldberg P.A., Walker R.F., Ellwood P.A., Hardy H.L.
Title Determination of trace atmospheric isocyanate concentrations by reversed-phase high-performance liquid chromatography using 1-(2-pyridyl)piperazine reagent
Bibliographic information 1981, Vol.212, p.93-104. Illus. 38 ref.
Abstract Aliphatic and aromatic isocyanates are determined in air by drawing a test atmosphere through a 2x10-4M solution of 1-(2-pyridyl)piperazine in toluene at a rate of 1l/min for 5-20min. The sample solution, in which the isocyanates form urea derivatives, is evaporated to dryness and an acetonitrile solutin of the residue is chromatographed using a column packed with ODS-Hypersil 5Ám silica gel and eluted with an acetonitrile-0.1M ammonium acetae mobile phase at 2.0ml/minflow rate. The lower limit of detection for MDI and TDI is 0.5Ág/m3 for a 10l air sample.
Descriptors (primary) high performance chromatography; determination in air; isocyanates
Descriptors (secondary) methylene diisocyanate; phenyl isocyanate; hexamethylene diisocyanate; description of technique; naphthylene diisocyanate; 2,6-tolylene diisocyanate; 2,4-tolylene diisocyanate; isophorone diisocyanate
Document type D - Periodical articles
Subject(s) Toxic and dangerous substances
Broad subject area(s)
Browse category(ies) Isocyanates
Cyano compounds