ISSN:
0930-7516
Keywords:
Chemistry
;
Industrial Chemistry and Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
A simple and inexpensive Pbs-FET with high sensitivity and short response time was developed which consists of a PbS layer on a pH-sensitive gate of a field effect transistor. The PbS-layer was prepared with simple wet precipitations technique. The PbS-FET has about the same selectivities for Pb2+ -and for Cu2+ -ions, but only slight sensitivity for Cd2+ -and Zn2+ -ions. The sensor was integrated in a FIA system. By variing the injection time the measuring range varied between 10-1-10-6 and 10-2-10-8 mol Pb2+/1. The PbS-FET-FIA system is suitable for monitoring of Pb2+ concentrations in drinking water.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/ceat.270180402
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