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Base de datos CISDOC

ID (ISN) del documento60089
Número CIS 93-902
ISSN - Título de la serie 0002-8894 - American Industrial Hygiene Association Journal
Año 1992
Número de serie
Autor(es) Kuo H.W., Wang J.D., Lin J.M.
Título Determination of 4,4'-bipyridine vapor
Información bibliográfica Aug. 1992, Vol.53, No.8, p.514-518. Illus. 14 ref.
Resumen An air-sampling and analytical method was developed and evaluated for the personal monitoring of 4,4'-bipyridine vapour, the major intermediate product in the manufacturing of paraquat. 4,4'-bipyridine vapour was collected in XAD-tubes, desorbed from the tubes with diethyl ether, and determined by high-performance liquid chromatography. The desorption efficiency of XAD-2 sorbent was 100.7% for the spikes between 0.6 and 12.0µg. A dynamic U-tube system was used for testing the air sampling of known quantities of 4,4'-bipyridine into XAD-2 tubes. An average vapour collection of 96.3% was obtained at average concentrations ranging between 0.07 and 0.7mg/m3 under controlled temperature and humidity conditions. The detection limit of the analytical method was 2ng of 4,4'-bipyridine corresponding to a 0.5µg/sample. It is believed that this method is suitable for personal monitoring of 4,4'-bipyridine vapour.
Descriptores (primarios) muestreo individual; dipiridilo-4,4'; rendimiento de la desabsorción; toma de muestras y análisis; toma de muestras del aire; gases tóxicos
Descriptores (secundarios) descripción del material; descripción del procedimiento; paraquat
Tipo de documento D - Artículos periódicos
País / Estado o ProvinciaTaiwan (China)
Tema(s) Sustancias tóxicas y peligrosas
Broad subject area(s) Riesgos químicos
Navegación por categoria(s) Heterocyclic compounds