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Liquid chomatographic determination of dimethyl formamide, methylene bisphenyl isocyanate and methylene bisphenyl amine in air samples
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MAP20071017393
Lipski, Krzysztof ‌
Liquid chomatographic determination of dimethyl formamide, methylene bisphenyl isocyanate and methylene bisphenyl amine in air samples / Krzysztof Lipski
Sumario: The application of high-performance liquid chromatography on a silica gel phase has resulted in amethod for analysis of dimethyl formamide, methylene bisphenyl isocyanate and methylene bisphenyl amine in air samples. The above mixture was used in the production of polyurethane fibres. For sampling purposes, silica gel coated with diethylamine was used. Since isocyanate is highly reactive, it must be rapidly converted into a stable derivative. This was achieved by reaction with diethylamine. After desorption of the mixture, compounds are separated by high-performance liquid chromatography. Spectrophotometric detection was used for quantitative determination of the mixture components
En: The Annals of occupational hygiene. - Oxford [etc.]. - nº 1, 1982 ; p. 1-4
1. Higiene industrial ‌. 2. Contaminantes químicos ‌. 3. Isocianatos ‌. 4. Metileno ‌. 5. Dimetilformamida ‌. 6. Contaminación atmosférica ‌. 7. Control de contaminantes ‌. 8. Técnicas cromatográficas ‌. 9. Espectrofotometría ‌. 10. Métodos de análisis ‌. I. Título. II. Título: The Annals of occupational hygiene.