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Evaluation of a PVC‐Based Thionine‐Zeolite and Zeolite Free Membranes as Sensing Elements in Ion Selective Electrode |
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| Abstract: | The construction and performance characteristics of thionine electrodes based on the ion‐pair complex thionine‐tungstophosphate and thionine‐mordenite zeolite embedded in a polyvinyl chloride (PVC) matrix is described. Thionine electrode based on the ion‐pair is used for the indirect determination of ascorbic acid by standard addition method. |
| Keywords: | Thionine‐tungstophosphate(TH‐TP) Thionine‐mordenite Ion selectiive electrodes Ascorbic acid |
