Flame Photometric Determination of Calcium in Biological Material- Effect of Low Level Impurities from Calcium Oxalate Precipitation

1957 ◽  
Vol 29 (4) ◽  
pp. 540-543 ◽  
Author(s):  
T. Y. Toribara ◽  
P. A. Dewey ◽  
Huber. Warner
Keyword(s):  
Calcium Oxalate ◽  
Biological Material ◽  
Photometric Determination ◽  
Low Level ◽  
Oxalate Precipitation

A Simplified Technique for Determination of Small Amounts of Calcium as Oxalate

1964 ◽  
Vol 10 (4) ◽  
pp. 352-365
Author(s):  
Donald D Van Slyke ◽  
Paul E Carson
Keyword(s):  
Acid Solution ◽  
Calcium Oxalate ◽  
Perchloric Acid ◽  
Perchloric Acid Solution ◽  
Ceric Sulfate ◽  
Glass Filter ◽  
Oxalate Precipitation ◽  
Oxalate Solution ◽  
Filter Tube

Abstract Procedures for determination of calcium by oxalate precipitation are reviewed, and a method is described in which the calcium oxalate precipitate is both formed and washed in a filter tube with a fritted-glass filter. Washing with saturated calcium oxalate solution is completed in 1-2 min. The washed precipitate is redissolved in perchloric acid solution and the dissolved oxalate is either titrated or determined manometrically by the CO2 evolved from oxidation with ceric sulfate.

Novel method for low level Sr-90 activity detection in seawater by combining oxalate precipitation and chelating resin extraction

2017 ◽  
Vol 51 (2) ◽  
pp. 193-197 ◽  
Author(s):  
Hirofumi Tazoe ◽  
Hajime Obata ◽  
Masatoshi Tomita ◽  
Shinya Namura ◽  
Jun Nishioka ◽  
...  
Keyword(s):  
Chelating Resin ◽  
Activity Detection ◽  
Low Level ◽  
Oxalate Precipitation ◽  
Novel Method

Photometric determination of copper (II) microquantities in pyrite

2019 ◽  
Vol 85 (10) ◽  
pp. 23-28
Author(s):  
F. S. Aliyeva ◽  
F. O. Mamedova ◽  
F. N. Bahmanova ◽  
Yu. A. Yusibov ◽  
F. M. Chyragov
Keyword(s):  
Photometric Determination ◽  
Determination Of Copper
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