Disposal screen-printed carbon paste electrodes for the potentiometric titration of surfactants

被引：90

作者：

Khaled, Elmorsy ^{[1
]}

Mohamed, Gehad G. ^{[2
]}

Awad, T. ^{[2
]}

机构：

[1] Natl Res Ctr, Microanal Lab, Giza, Egypt

[2] Cairo Univ, Fac Sci, Dept Chem, Giza, Egypt

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2008年 / 135卷 / 01期

关键词：

Disposal screen-printed electrodes; Surfactants; Potentiometric titration; Pharmaceutical preparations; Detergents; Water samples;

D O I：

10.1016/j.snb.2008.07.027

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple, reliable, rapid and reproducible method for mass production of disposable carbon paste electrodes using screen-printing technology is described. The printed disposable potentiometric strips containing both working and reference electrodes are utilized as end-point indicator electrodes for the potentiometirc titration of ionic surfactants in different samples. The home-made printing carbon ink formulations and printing conditions are investigated and discussed in details. The analytical performances of the printed electrodes are compared with those for carbon paste, coated wire, coated graphite and PVC polymeric membrane electrodes. The printed electrodes show very short response time reaching 3 s with adequate shelf-life (6 months). The proposed disposable strips have been successfully used for the potentiometric titration of cationic and anionic surfactants in their analytical grade solutions, pharmaceutical preparations. detergents and water samples with sensitivity comparable with the official method and ability of field measurement. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：74 / 80

页数：7

共 37 条

[1] Cetylpyridinium-iodomercurate PVC membrane ion selective electrode for the determination of cetylpyridinium cation in Ezafluor mouth wash and as a detector for some potentiometric titrations [J].