Colorimetric determination of ascorbic acid

1973 ◽  
Vol 61 (6) ◽  
pp. 901-906 ◽  
Author(s):  
M. H. Hashmi ◽  
Maqbool Ahmad Shahid ◽  
M. Ahsan Akhtar ◽  
N. A. Chughtai
Keyword(s):  
Ascorbic Acid ◽  
Colorimetric Determination

THE COLORIMETRIC DETERMINATION OF PLATINUM WITH 5-(p-DIMETHYLAMINOBENZYLIDENE)-RHODANINE

1963 ◽  
Vol 41 (3) ◽  
pp. 667-670 ◽  
Author(s):  
Frances E. Piercy ◽  
D. E. Ryan
Keyword(s):  
Ascorbic Acid ◽  
The Other ◽  
Colorimetric Determination ◽  
Platinum Metals ◽  
Low Concentrations ◽  
Fold Excess

5-(p-Dimethylaminobenzylidene)-rhodanine is used to determine 0.5 to 6 p.p.m. of platinum colorimetrically, after reduction of platinum IV with ascorbic acid. Platinum can be determined in the presence of a 10-fold excess of palladium; low concentrations of the other platinum metals, except rhodium, do not seriously interfere.

Colorimetric Determination of Ascorbic Acid

1954 ◽  
Vol 26 (9) ◽  
pp. 1521-1522 ◽  
Author(s):  
Morton. Schmall ◽  
C. W. Pifer ◽  
E. G. Wollish ◽  
Robert. Duschinsky ◽  
Harold. Gainer
Keyword(s):  
Ascorbic Acid ◽  
Colorimetric Determination
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