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US 8,137,520 B1Granted
Chloride ion-selective electrode
AssigneeChung Yuan Christian University
InventorsChean-Yeh Cheng, Wen-Yaw Chung, Zhu-Ming Huang
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Abstract
A chloride ion-selective electrode comprises: a reference electrode in contact with a reference solution; and a chloride ion-selective membrane as the interface of a sample and the reference solution, wherein the chloride-ion selective membrane comprises a chloride ion ionophore, a chloride ion-exchange resin, a plasticizer, and a polymer matrix.
Claims10
A chloride ion-selective electrode, for sensing the concentration of chloride ions of a sample solution, comprising:
- a reference electrode, immersed in a reference solution containing chloride ions;
- and
- a chloride ion-selective membrane, as an interface of the sample solution and the reference solution, comprising;
- a chloride ionophore, for binding chloride ions;
- a chloride ion-exchange resin, for exchanging chloride ions of the sample solution and the reference solution, wherein the chloride ion-exchange resin is selected from the group consisting essentially of strong anion-exchange resin, weak anion-exchange resin, and combinations thereof, and wherein the chloride ion-exchange resin is selected from the group consisting essentially of trimethyl ethenyl quarternary ammonium chloride polystyrene-divinylbenzene resin, m-phenylenediamine-formaldehyde resin, melamine (acyl)-guanidine-formaldehyde resin, and combinations thereof;
- a plasticizer;
- and
- a polymer matrix.
5 more elements
Dependencies are inferred from the claim text.