Selective potentiometric determination of Bi(III) with a coated-wire electrode
β Scribed by P.W. Alexander; Jose P. Joseph
- Book ID
- 118993570
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 357 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0039-9140
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π SIMILAR VOLUMES
A coated-wire gold(III)-selective electrode based on the 1,2,4,6tetraphenylpyridinium tetrachloroaurate(II1) ion-pair is described. The response is Nernstian in the gold concentration range lo-'-3 X 10d (slope 59.0 mV/pAu). Of the 22 ions tested, only the interference of thallium(II1) is important.
A method for the determination of sulphated glycosaminoglycans is based on their precipitation with (1-ethoxycarbonyl)pentadecyltrimethylammonium bromide (Septonex), the excess of which is back-titrated with sodium tetraphenylborate. The titration is monitored by a simple coated-wire ion-selective e