Your browser doesn't support javascript.
loading
Improved gas chromatographic determination of nicotine in environmental tobacco smoke.
Analyst ; 114(9): 1005-8, 1989 Sep.
Article en En | MEDLINE | ID: mdl-2610362
ABSTRACT
A rapid gas chromatographic procedure with an analysis time of 5 min was developed for the determination of environmental nicotine collected on sorbent tubes containing XAD-4 resin. In validating this procedure, severe temporal losses of nicotine were observed for solutions in glass sample vials waiting in a queue in an autosampler tray for analysis. These losses were traced to adsorptive interactions of nicotine with the glass surface of the vials. The use of N-ethylnornicotine as the internal standard or the addition of triethylamine to all solutions were both successful in producing constant response ratios of nicotine to internal standard. Owing to the limited availability and expense of N-ethylnornicotine, our current procedure calls for the addition of triethylamine to all nicotine solutions at the 0.01% V/V level and the use of quinoline as internal standard.
Asunto(s)
Buscar en Google
Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminación por Humo de Tabaco / Cromatografía de Gases / Nicotina Idioma: En Revista: Analyst Año: 1989 Tipo del documento: Article
Buscar en Google
Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminación por Humo de Tabaco / Cromatografía de Gases / Nicotina Idioma: En Revista: Analyst Año: 1989 Tipo del documento: Article