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Folgetitrimetrische bestimmung von calcium und magnesium mit ÄDTA in äthanolhaltiger lösung

✍ Scribed by Tibor A. Kiss; Ferenc F. Gaál; Teréz M. Surányi; István J. Zsigrai


Publisher
Elsevier Science
Year
1968
Tongue
English
Weight
256 KB
Volume
43
Category
Article
ISSN
0003-2670

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✦ Synopsis


Co2+, Ni'+, U022+, 250 ppm. of silver, IOO p.p.m. of iodide, and 5 p.p.m. of copper(I1) and bicafbonate could be tolerated. Phosphate, fluoride, citrate and oxalate interfered at all levels. Tln~s 2,4-dil~ydroxyacctopllcnone provides a selective determination of iron(III). Since the absorbance values of the complex are practically constant in the spectral range 460-480 nm, the method is suitable for use with simple filter photometers.

The authors thank Prof. 1.3. I<. VAIDYA for his interest and the Gujarat University for the award of a research scholarship to M.H.G.


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