Microdetermination of calcium and magnesium in biological materials.

Abstract:

:The use of the dye calcon (1-(2 hydroxy-1-naphthylazo)-2-naphthol-4 sulphonic acid) for the estimation of calcium using E.D.T.A. and a commercial photoelectric titrimeter is described. The interfering effects of magnesium and phosphate have been overcome. The method has been extended to estimations on biological materials. Results on 55 sera show that the E.D.T.A./calcon method gave slightly lower results (-0.15 mg./100 ml. +/- 0.029) than the oxalate precipitation method. Magnesium may also be estimated by incorporating the use of Eriochrome black T.

journal_name

J Clin Pathol

authors

BOWDEN CH,PATSTON VJ

doi

10.1136/jcp.16.1.18

keywords:

subject

Has Abstract

pub_date

1963-01-01 00:00:00

pages

18-24

eissn

0021-9746

issn

1472-4146

journal_volume

16

pub_type

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