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.
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description 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.
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subjects 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
title A Simple Sensor for Potentiometric Titrations
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