NYLON MEMBRANE-ELECTRODE SELECTIVE FOR HIGH MOLECULAR-WEIGHT ALKYL ARYL SULFONATES

被引：37

作者：

HOKE, SH

COLLINS, AG

REYNOLDS, CA

机构：

[1] Bartlesville Energy Technology Center, U.S. Department of Energy, Bartlesville, Oklahoma 74003

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 07期

关键词：

D O I：

10.1021/ac50043a019

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A nylon membrane electrode selective for pentadecyl benzene sulfonate is described. The active material in the membrane is a quaternary ammonium sulfonate salt. The electrode gives Nernstian response to pentadecyl benzene sulfonate from the critical micelle concentration down to 10-7 M. Selectivity coefficients for several sulfonates and inorganic anions are given. The electrode has been used as an end-point indicator for the potentiometric titration of sulfonates. The results from this method and the Methylene Blue Method for several petroleum sulfonates compare favorably. © 1979, American Chemical Society. All rights reserved.

引用

页码：859 / 862

页数：4

共 19 条

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