Determination of calcium

Chemistry: physical processes – Physical processes – Crystallization

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252408R, G01N 3316

Patent

active

039389545

ABSTRACT:
An improved reagent system for determining calcium by the orthocresolphthalein complexone color reaction. The reagent utilizes an alkaline buffer containing an aminoloweralkanol providing a pH of about 10.2 - 10.5. A method for using the reagent is also described. The composition is stable for extended periods.

REFERENCES:
zak et al., Adv. in Automated Analysis, 1972 Technicon International Congress, Mediad Inc., Vol. 1 pp. 151-157 (1972).
Connerty et al., Am. J. Clin. Path., Vol. 45, pp. 290-294 (1966).
Moorehead et al., Clin. Chem., Vol. 20, pp. 1458-1460 (1974).

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