Use of a crown ether-heteropoly acid precipitate as a potassium ion-selective membrane electrode
| Autor: | Anita Rani, N. R. Bannerjee, Surender Kumar |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
chemistry.chemical_classification
Potassium Clinical Biochemistry Inorganic chemistry chemistry.chemical_element General Medicine Glass electrode Analytical Chemistry law.invention Ion selective electrode chemistry.chemical_compound Membrane chemistry law Caesium Saturated calomel electrode General Materials Science Ammonium Crown ether |
| Zdroj: | Fresenius' Zeitschrift für analytische Chemie. 328:33-36 |
| ISSN: | 0016-1152 |
| Popis: | A Potassium ion-selective electrode based on dibenzo-18-crown-6-tungstophosphoric acid precipitate membrane is prepared and conditions for the best functioning have been investigated. The working concentration and pH-range of the electrode is 2.0×10−2 to 1.3×10−6 mol/l and 2.9–6.5, respectively. The selectivity coefficient values for a large number of cations are quite low except for caesium and ammonium ions. The electrode can tolerate non-aqueous content upto 20%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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