Evaluations of commercial ion selective electrodes: 2. The cyanide ion selective electrode

Rauno Virtanen

Research output: Book/ReportReport


Cyanide ion selective electrodes from three manufacturers were evaluated.The investigation consisted of determination of calibration curves five times at intervals of two weeks and measurement of the selectivity coefficients for the chloride, bromide, iodide, and thiosulfate ions.No significant differences between different makes were found.The measurement ranges of the electrodes were found to be from 10 3 to 10 7 mol/dm3.The upper limit is deterrnined by rapid dissolution of the membrane.The potentials of the electrodes were very stable and reproducible.The behaviour of the electrodes towards interfering ions followed theoretical predictions and was according to the manufacturers information.Also the effect of pH was studied and a peculiar phenomenon in this respect was noted.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages24
ISBN (Print)951-38-1335-5
Publication statusPublished - 1981
MoE publication typeNot Eligible

Publication series

SeriesTechnical Research Centre of Finland. Publications


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