DETERMINATION OF TRACE AMOUNTS OF POLYDIMETHYLSILOXANE IN EXTRACTS OF CHEMICALS BY PROTON NUCLEAR MAGNETIC-RESONANCE SPECTROSCOPY

被引：8

作者：

FUX, P

机构：

[1] Central Analytical Department, Ciba-Geigy Ltd.

来源：

ANALYST | 1990年 / 115卷 / 02期

关键词：

Dye; Extraction; Plastics additive; Polydimethylsiloxane determination; Proton nuclear magnetic resonance spectroscopy; Silicone;

D O I：

10.1039/an9901500179

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Proton nuclear magnetic resonance spectroscopy has been used to determine trace amounts of polydimethylsiloxane (PDMS) in plastics additives, dyes and pigments. An efficient Soxhlet extraction procedure using pentane is proposed. Accurate, quantitative results were achieved with samples containing siloxanes at the μg g-1 level. The quantification limit was found to be 0.1 μg g-1 of PDMS. This is the level at which acceptable recoveries were found.

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页码：179 / 183

页数：5

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