THE DETERMINATION OF CALCIUM AND MAGNESIUM IN BLOOD USING ONE INDICATOR

1959 ◽  
Vol 37 (1) ◽  
pp. 225-229 ◽  
Author(s):  
H. M. Czajkowska Robinson ◽  
J. C. Rathbun
Keyword(s):  
Ethylenediaminetetraacetic Acid ◽  
Total Calcium ◽  
Eriochrome Black T ◽  
End Point ◽  
Acid Titration ◽  
Calcium And Magnesium

A rapid ethylenediaminetetraacetic acid titration for calcium and magnesium in serum requiring 0.1 ml of blood is described. Eriochrome black T is used as the sole indicator and the end point is observed photometrically. After determination of total calcium and magnesium, the calcium is removed as oxalate, the magnesium determined separately, and the calcium obtained by difference. The method is highly reproducible and is sensitive to ± 0.1 mg% of either calcium or magnesium.

THE DETERMINATION OF CALCIUM AND MAGNESIUM IN BLOOD USING ONE INDICATOR

1959 ◽  
Vol 37 (2) ◽  
pp. 225-229 ◽  
Author(s):  
H. M. Czajkowska Robinson ◽  
J. C. Rathbun
Keyword(s):  
Ethylenediaminetetraacetic Acid ◽  
Total Calcium ◽  
Eriochrome Black T ◽  
End Point ◽  
Acid Titration ◽  
Calcium And Magnesium

A rapid ethylenediaminetetraacetic acid titration for calcium and magnesium in serum requiring 0.1 ml of blood is described. Eriochrome black T is used as the sole indicator and the end point is observed photometrically. After determination of total calcium and magnesium, the calcium is removed as oxalate, the magnesium determined separately, and the calcium obtained by difference. The method is highly reproducible and is sensitive to ± 0.1 mg% of either calcium or magnesium.

Determination of Magnesium and Calcium in Urine

1959 ◽  
Vol 5 (1) ◽  
pp. 45-49 ◽  
Author(s):  
Raul Carubelli ◽  
William O Smith ◽  
James F Hammarsten
Keyword(s):  
Eriochrome Black T ◽  
Spectrophotometric Titrations ◽  
Calcium And Magnesium

Abstract A procedure for the determination of both calcium and magnesium in urine is described. The method consists of the separation of calcium from magnesium and individual spectrophotometric titrations of each using EDTA as a complexometric reagent and murexide and eriochrome black T as indicators. Recoveries have proven very satisfactory.

Ion Chromatography as Potential Reference Methodology for the Determination of Total Calcium and Magnesium in Human Serum

1994 ◽  
Vol 66 (14) ◽  
pp. 2404-2408 ◽  
Author(s):  
Linda M. Thienpont ◽  
Jean E. Van Nuwenborg ◽  
Dietmar. Stoeckl
Keyword(s):  
Human Serum ◽  
Ion Chromatography ◽  
Total Calcium ◽  
Calcium And Magnesium
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