A Simple Sensor for Potentiometric Titrations

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. preci...

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Veröffentlicht in:	Anal. Lett.; (United States) 1982-01, Vol.15 (3), p.309-329
1. Verfasser:	Selig, W.
Format:	Artikel
Sprache:	eng
Schlagworte:	400102 - Chemical & Spectral Procedures CHEMICAL PREPARATION CHEMICAL REACTIONS CHLORIDES CHLORINE COMPOUNDS COMPLEXOMETRY ELECTRODES ELEMENTS HALIDES HALOGEN COMPOUNDS INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY METALS POTENTIOMETRY REDOX REACTIONS SILVER SILVER CHLORIDES SILVER COMPOUNDS SYNTHESIS TITRATION TRANSITION ELEMENT COMPOUNDS TRANSITION ELEMENTS
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Beschreibung
Zusammenfassung:	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.
ISSN:	0003-2719 1532-236X
DOI:	10.1080/00032718208064384