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Document ID (ISN)41878
CIS number 84-737
ISSN - Serial title Gigiena truda i professional'nye zabolevanija
Year 1982
Convention or series no.
Author(s) Hohol'kova G.A., Belašova I.G.
Title Chromatographic method of determining fenuron in workplace air
Original title Hromatografičeskij metod opredelenija fenurona v vozduhe rabočej zony [in Russian]
Bibliographic information Sep. 1982, No.9, p.55-56. 4 ref.
Abstract Air containing suspended fenuron (a herbicide) is drawn through an appropriate filter. Trapped particulates are extracted from the filter with ethyl alcohol and applied to silica gel thin-layer chromatography plates. The plates are developed with a 1:1 mixture of hexane and acetone. Fenuron on the plates is visualised by diazotisation and treatment with α-naphthol or diphenylamine. The amount of fenuron present is determined by comparison of the area of the sample spot with the areas of standard spots. As little as 0.2µg fenuron can be detected; for a typical sample size of 2l air, this represents a concentration of 0.1mg/m3. The range of measurable concentrations is 0.1-1mg/m3, with a precision of 15%. Other industrial phenylureas do not interfere with the determination.
Descriptors (primary) herbicides; determination in air; N,N-dimethyl-N'-phenylurea
Descriptors (secondary) thin-layer chromatography; description of technique
Document type D - Periodical articles
Subject(s) Toxic and dangerous substances
Broad subject area(s)
Browse category(ies) Amides
Agricultural chemicals