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Liquid chomatographic determination of dimethyl formamide, methylene bisphenyl isocyanate and methylene bisphenyl amine in air samples

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Registro MARC
Tag12Valor
LDR  00000nab a2200000 i 4500
001  MAP20071017393
003  MAP
005  20080418115036.0
007  hzruuu---uuuu
008  940215s1982 gbr|||| | |00010|eng d
035  ‎$a‎6800003249
040  ‎$a‎MAP‎$b‎spa
084  ‎$a‎872
1001 ‎$0‎MAPA20080198657‎$a‎Lipski, Krzysztof
24510‎$a‎Liquid chomatographic determination of dimethyl formamide, methylene bisphenyl isocyanate and methylene bisphenyl amine in air samples‎$c‎Krzysztof Lipski
520  ‎$a‎The 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
65011‎$0‎MAPA20080585679‎$a‎Higiene industrial
65011‎$0‎MAPA20080605278‎$a‎Contaminantes químicos
65011‎$0‎MAPA20080558994‎$a‎Isocianatos
65011‎$0‎MAPA20080548193‎$a‎Metileno
65011‎$0‎MAPA20080575656‎$a‎Dimetilformamida
65011‎$0‎MAPA20080616441‎$a‎Contaminación atmosférica
65011‎$0‎MAPA20080613655‎$a‎Control de contaminantes
65011‎$0‎MAPA20080615543‎$a‎Técnicas cromatográficas
65011‎$0‎MAPA20080585143‎$a‎Espectrofotometría
65011‎$0‎MAPA20080591960‎$a‎Métodos de análisis
7404 ‎$a‎The Annals of occupational hygiene
7730 ‎$t‎The Annals of occupational hygiene‎$d‎Oxford [etc.]‎$g‎nº 1, 1982 ; p. 1-4