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Issue 10, 1984
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Equivalence-point location in the titration of a weak acid with sodium hydroxide solution: a comparison of photometric and potentiometric methods. Influence of titrant carbonation on the accuracy and precision of end-points

Abstract

Using standard laboratory equipment a statistical comparison was carried out of several photometric methods (normal and various Higuchi plots) and potentiometric methods (point of inflection and Gran) for equivalence-point location in an acetic acid-sodium hydroxide solution titration. All methods exhibited similar precision but were divided into two groups with respect to accuracy. With increasing carbonate concentration in the titrant there was a decrease in the linear range for Higuchi and Gran plots and a decrease in accuracy for all methods.

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Article information


Analyst, 1984,109, 1309-1311
Article type
Paper

Equivalence-point location in the titration of a weak acid with sodium hydroxide solution: a comparison of photometric and potentiometric methods. Influence of titrant carbonation on the accuracy and precision of end-points

C. G. Halliday, T. J. Kelly and M. A. Leonard, Analyst, 1984, 109, 1309
DOI: 10.1039/AN9840901309

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