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Journal of Automatic Chemistry
Volume 13, Issue 3, Pages 119-122

Computer-controlled ion-selective electrode switch

Physical Chemistry Department, Faculty of Pharmacy, University of Porto, Porto 4000, Portugal

Copyright © 1991 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The construction of a microcomputer-controlled electrode switch for use in potentiometric determinations is described. This can be coupled to most of the analytical equipment usually found in laboratories, to enable a setting up of automatic systems capable of performing sequential determinations with several ion-selective electrodes. The assessment of its analytical usage and behaviour are discussed.