A solvent-free sampling method for airborne toluene diisocyanate |
| |
Authors: | A. Robert P. Simon |
| |
Affiliation: | (1) Institut National de Recherche et de Sécurité (I.N.R.S.), Avenue de Bourgogne, B.P. 27, 54501 Vandoeuvre, France |
| |
Abstract: | Summary A useful method of sampling and measurement of toluene diisocyanate concentration in atmosphere is described. The sampler consists of glass-fibre filters impregnated with the reagent 1-(2-methoxyphenyl)piperazine1 so that the 2,4 and 2,6 isomers of TDI react to form urea derivatives which are analysed by high performance liquid chromatography in isocratic mode on cyan-amino and C18 bonded phases. A dynamic system was used to generate standard atmospheres of TDI and to validate the sampling method within the humidity range of 0% to 75%. A coated filter, a bubbling solution and an impregnated silica gel were compared as samplers requiring the piperazine reagent in performance experiments. |
| |
Keywords: | Column liquid chromatography Toluene Diisocyanate in air Collector for air sampling |
本文献已被 SpringerLink 等数据库收录! |
|