Electrolysis: processes – compositions used therein – and methods – Electrolytic analysis or testing – For ph
Patent
1995-11-28
1997-08-19
Tung, T.
Electrolysis: processes, compositions used therein, and methods
Electrolytic analysis or testing
For ph
204400, 204416, 204418, 204419, 204420, 205775, 205792, 436 8, 436 9, 436 11, G01N 2726, G01N 27136
Patent
active
056584512
ABSTRACT:
In a method for calibration of a pH measuring element whose ion-permeable, hydrophilic polymer layer is brought into contact with an aqueous solution prior to calibration, the aqueous solution is displaced or replaced by a gaseous calibrating medium, and residues of the aqueous solution remaining in the ion-permeable polymer layer. The gaseous calibrating medium contains a known amount of at least one component which is acid or basic in aqueous solution which reacts with the remaining residues of the aqueous solution in the polymer layer, such that a defined pH value is established in the polymer layer, which is employed for calibration of the measuring element.
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AVL Medical Instruments AG
Tung T.
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