Abstract
Some different types of miniaturized polymer membrane electrodes (PMEs) for chloride ion were constructed by the use of epoxy matrix membrane. The PME of the best characteristics consists of a copper wire and three coating layers of silver paste of epoxy matrix type, silver chloride and epoxy matrix incorporating about 45 wt % of an ion exchanger solution. The most suitable ion exchanger solution was 1-decanol containing 0.4 wt % of trioctylmethylammonium chloride. The thickness of coating layers were (0.2~0.3) mm at each layer and the electrode was about 1 mm outer diameter. The responses of the PME were Nernstian for (5X10-5~4X 10-2) M chloride. The noise of the PME on electrode potential was ± 0.5 mV at the lower linear response range. The selectivity coefficients (K Yr) of the PME for perchlorate and iodide were 1.3 and 1.1, respectively.
Original language | English |
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Pages (from-to) | 71-76 |
Number of pages | 6 |
Journal | BUNSEKI KAGAKU |
Volume | 31 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1982 |
Keywords
- Ion-selective polymer membrane electrode for chloride ion
ASJC Scopus subject areas
- Analytical Chemistry