Composition for the colorimetric determination of metals
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United States of America Patent
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Oct 4, 1983
Grant Date -
N/A
app pub date -
Dec 11, 1980
filing date -
Feb 26, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved colorimetric reagent is disclosed, which is adapted to the determination of the iron content in blood serum. The formulation comprises only two aqueous solutions: one of these comprises a buffer, a soluble salt of an alkali metal or an alkaline earth metal, Chromazurol B, a cationic or nonionic surfactant, whereas the other solution comprises a complexing agent and possibly the same ingredients of the chromogenic reagent for hindering the formation of the disturbing complex between chromazurol B, the surfactant and the iron: the complexing agent is a polycarboxylic acid or a salt thereof.
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