A Simple Sensor for Potentiometric Titrations
- 1 January 1982
- journal article
- research article
- Published by Taylor & Francis in Analytical Letters
- Vol. 15 (3) , 309-329
- https://doi.org/10.1080/00032718208064384
Abstract
A sensor for potentiometric titrations was prepared by coating a spectroscopic graphite rod with a solution of poly(vinyl chloride) and dioctylphthalate in tetrahydrofuran. The reference was a Ag/AgCl single-junction electrode. The sensor was used in the following potentiometric titrations: 1. precipitation titrations 2. acid-base titrations, 3. compleximetric titrations, and 4. redox titrations. A survey of its use in such titrations is presented. Preparation of the coated-graphite sensor is simple and rapid. Moreover, it is quite inexpensive. A limitation is its applicability in aqueous media only, because organic solvents will dissolve the membrane.Keywords
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