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.
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页码：859 / 862
页数：4
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