MULTIIONOPHORE-BASED SOLID-STATE POTENTIOMETRIC ION SENSOR AS A CATION DETECTOR FOR ION CHROMATOGRAPHY

被引:12
|
作者
LEE, KS
SHIN, JH
CHA, MJ
CHA, GS
TROJANOWICZ, M
LIU, D
GOLDBERG, HD
HOWER, RW
BROWN, RB
机构
[1] UNIV WARSAW, DEPT CHEM, WARSAW, POLAND
[2] UNIV MICHIGAN, DEPT CHEM, ANN ARBOR, MI 48109 USA
[3] MIT, MICROSYST TECHNOL LABS, CAMBRIDGE, MA 02139 USA
[4] UNIV MICHIGAN, DEPT ELECT ENGN & COMP SCI, ANN ARBOR, MI 48109 USA
来源
SENSORS AND ACTUATORS B-CHEMICAL | 1994年 / 20卷 / 2-3期
基金
美国国家科学基金会;
关键词
D O I
10.1016/0925-4005(94)01198-2
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A new solvent/polymeric multiion-selective membrane electrode is described for use as a flow-through detector in ion chromatography. Unlike conventional ion-selective membranes that utilize only one type of ionophore, the multiion-selective membranes incorporate several different ionophores. In this study, a K+/NH4+/Na+/Ca2+ selective membrane has been prepared by incorporating four different neutral-carrier ionophores in a strongly adhesive polyurethane matrix. This membrane is cast on solid electrode surfaces, with no internal electrolyte solution, to form solid-state multiion sensors. The detection characteristics of the multiionophore membranes, which are controlled by the amounts and ratios of the ionophores they contain, are examined in a flow-injection arrangement. The sensors have been demonstrated in the target application, a flow-through ion chromatography system.
引用
收藏
页码:239 / 246
页数:8
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