The spectrophotometric determination of the alkaline-earth metals with murexide, eriochrome black T and with o-cresolphthalein complexone
β Scribed by Pollard, F. H.; Martin, J. V.
- Book ID
- 119944450
- Publisher
- Royal Society of Chemistry
- Year
- 1956
- Tongue
- English
- Weight
- 587 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0003-2654
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## Abstract Copper has been determined by a modified dualβwavelength spectrophotometric (DWS) method, using the reaction of Cu^II^ with eriochrome blue black R (EBBR) at pH 12, which is sensitive and selective in the presence of both pentadecyltrimethylammonium bromide (PTMAB) and ascorbic acid. Th
Formation constants of acetate, hydrogencarbonate, malonate, citrate and 1,2,3-propanetricarboxylate complexes with Na+, K+ and Ca'+ were determined potentiometrically using sodium, potassium and calcium selective electrodes, at 25Β°C and at different ionic strengths, in the range 0 <II 1 M. Formatio