FIELD: physics.
SUBSTANCE: invention relates to potentiometric analysis methods. The potentiometric sensor for detecting lysine in aqueous solution consists of a silver-chloride comparison electrode, membranes made from perfluorinated sulfocationite polymer and two cases joined together. The comparison electrode is fitted in one of the cases and a membrane in the other such that, one of its ends lies in the first case and the other comes out of the second case.
EFFECT: increased selectivity and stability of the sensor, easier operation, more accurate determination.
5 dwg
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