IMPROVEMENTS IN THE METHODS FOR CALCIUM DETERMINATION IN BIOLOGICAL MATERIAL
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چکیده
منابع مشابه
Improvements in the Methods for Calcium Determination in Biological Material
It is well known that the principal disadvantage of any method for the determination of calcium involving precipitation as calcium oxalate lies in washing the precipitate. The solubility of the precipitate in water or in dilute ammonium hydroxide is appreciable and, in centrifuging, a small amount of calcium oxalate tends to float on the surface of the liquid and is lost in decanting. The satis...
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15 صفحه اولCalcium determination in biologic material.
THE CLASSICAL PROCEDURE for the determination of calcium in biologic fluids involves the precipitation of calcium as the oxalate and titration of the oxalate with potassium permanganate. The permanganate titration has certain difficulties. The oxalate solution has to be heated during the titration (1) and the end point is unreliable in dilute solutions (2). The use of cerate oxidimetry avoids t...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1935
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)75045-x