Separation and fluorine nuclear magnetic resonance spectroscopic (19F NMR) analysis of individual branched isomers present in technical perfluorooctanesulfonic acid (PFOS)

被引：49

作者：

Arsenault, Gilles ^{[1
]}

Chittim, Brock ^{[1
]}

Gu, Jun ^{[3
]}

McAlees, Alan ^{[1
]}

McCrindle, Robert ^{[2
]}

Robertson, Valerie ^{[3
]}

机构：

[1] Wellington Labs Inc, Div Res, Guelph, ON N1G 3MG, Canada

[2] Univ Guelph, Dept Chem, Guelph, ON N1G 2W1, Canada

[3] Univ Guelph, NMR Ctr, Guelph, ON N1G 2W1, Canada

来源：

CHEMOSPHERE | 2008年 / 73卷 / 01期

关键词：

PFOS; PFOSF; F-19; NMR; structural determination; through space coupling;

D O I：

10.1016/j.chemosphere.2007.06.096

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The production of perfluoroalkylsulfonate (PFOS) derivatives from linear alkyl precursors using electro-chemical fluorination is not a clean process but, instead, gives complex mixtures. This study reports the isolation and F-19 NMR characterization of eleven perfluorooctanesulfonate isomers from a commercial mixture. This allowed the quantification of the individual CF3 branched isomers that predominate in technical PFOS. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：S53 / S59

页数：7

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