Speciation of organotin compounds released from poly(vinyl chloride) at increased temperature by gas chromatography with atomic emission detection

被引：19

作者：

Becker, G ^{[1
]}

Janak, K ^{[1
]}

Colmsjo, A ^{[1
]}

Ostman, C ^{[1
]}

机构：

[1] ACAD SCI CZECH REPUBL,INST ANALYT CHEM,CZ-61142 BRNO,CZECH REPUBLIC

来源：

JOURNAL OF CHROMATOGRAPHY A | 1997年 / 775卷 / 1-2期

关键词：

sample handling; derivatization; GC; organotin compounds; poly(vinyl chloride);

D O I：

10.1016/S0021-9673(97)00264-1

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A method for sampling and analysis of airborne organotin compounds emitted from poly(vinyl chloride) (PVC) was developed and tested. The organotins originating from dibutyltin maleate, mono- and dioctyltin mercaptoacetate stabilizers were released from PVC under controlled conditions and recovered from the sorption part of a sampling tube. The composition of the sampling material in the tube was optimized to get a reproducible release and complete sorption of the target compounds and to simplify the extraction procedure. An optimized extraction procedure together with aqueous phase derivatization and determination by gas chromatography-atomic emission detection resulted in a selective and reproducible determination of the oganotin compounds. Influences of different thermoplast temperatures, heating times, purge flow gases and purge flow rates on the release of organotins from PVC have been evaluated. Significant amounts of dibutyltin were found to be released from a PVC sample stabilized with dibutyltin maleate at temperatures of 108 degrees C to 200 degrees C. (C) 1997 Elsevier Science B.V.

引用

页码：295 / 306

页数：12

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