Effect of surfactants on the response of ion-selective electrodes with poly(vinyl chloride) membranes

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Abstract
The effect of cationic, anionic and non-ionic surfactants on the potentials of potassium-, calcium- and nitrate-selective electrodes has been studied. All electrodes investigated had either an internal reference solution or a solid-silver contact. The latter type was found to be less sensitive to surfactant interferences.

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