Chemical microsensors based on chalcogenide glasses for the detection of cadmium ions in solution

被引：24
作者：
Guessous, A
Sarradin, J
Papet, P
Elkacemi, K
Belcadi, S
Pradel, A
Ribes, M
机构：
[1] Univ Montpellier 2, Lab Physiocochim Mat Condensee, UMR 5617, F-34095 Montpellier 5, France
[2] Fac Sci Rabat, Lab Electrochim & Chim Analyt, Rabat, Morocco
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 1998年 / 53卷 / 1-2期
关键词：
chalcogenide glass; cadmium sensors; thin films;
D O I：
10.1016/S0925-4005(98)00279-2
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Chemical microsensors for the detection of Cd2+ ions in solution were prepared. The sensitive membranes are chalcogenide glasses from the CdS-AgI-Sb2S3 system. Physical, chemical and electrochemical characteristics of the sensors are presented. Quasi-nerstian responses over five orders of magnitude associated to a limit of detection lower than 10(-6) mol/1 were observed. Selectivity of the sensitive membranes versus several cations was studied. While low selectivity coefficients were obtained when the interfering cations were Co2+, Ni2+, Zn2+ or Ca2+ the present sensing device appears to be non selective against Pb2+ and Cu2+ (C) 1998 Elsevier Science S.A. All rights reserved.
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页码：13 / 18
页数：6
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