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Spectrophotometric determination of calcium in soil extracts with calcichrome

✍ Scribed by P. Pakalns; T.M. Florence

Publisher
Elsevier Science
Year
1964
Tongue
English
Weight
388 KB
Volume
30
Category
Article
ISSN
0003-2670

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✦ Synopsis

Standard calciwx solution, 80.0 pg/nzl. Dissolve 0.1998 g of pure calcium carbonate in a slight cxccss of hydrochloric acid and dilute to I 1.

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Spectrophotometric determination of calc
Spectrophotometric determination of calcium with a flow injection system
✍ G. Nakagawa; H. Wada; C. Wei πŸ“‚ Article πŸ“… 1983 πŸ› Elsevier Science 🌐 English βš– 415 KB

The indirect spectrophotometric determination of 0.8-7.2 ppm calcium in the presence of magnesium, phosphate and sulphate by flow injection analysis (f.i.a.) is described. The method is based on the exchange reaction between the calcium and the zinc complex of ethylene glycol-bis(2aminoethylether)te