THIN-FILMS OF CHALCOGENIDE GLASS AS SENSITIVE MEMBRANES FOR THE DETECTION OF MERCURIC IONS IN SOLUTION

被引：13

作者：

GUESSOUS, A

PAPET, P

SARRADIN, J

RIBES, M

机构：

[1] Laboratoire de Physicochimie des Matériaux Solides, CC003 URA CNRS D0407, Université de Montpellier II

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1995年 / 24卷 / 1-3期

关键词：

CHALCOGENIDE GLASS; ELECTROCHEMICAL SENSORS; MERCURY SENSORS; THIN FILMS;

D O I：

10.1016/0925-4005(95)85064-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Thin vitreous films elaborated by microelectronic techniques can be used to build up sensitive microsystems in order to detect ionic species (Hg2+) in aqueous solution. Characteristics of sensing systems based on thin films of chalcogenide glasses are presented. The microsensors exhibit quasi-Nernstian potentiometric response over five orders of magnitude with a limit of detection below 10(-6) mol l(-1) In the presence of interfering heavy-metal ions (Pb2+, Cd2+) the sensing systems are very selective, since low selectivity coefficients are obtained versus those ionic species.

引用

页码：296 / 299

页数：4

共 8 条

[1]

[Anonymous], 1983, ION SELECTIVE ELECTR

[2] ION SELECTIVE ELECTROCHEMICAL SENSORS-FE+3, CU+2 [J].