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Indirect polarographic determination of titanium

✍ Scribed by Yolanda Castrillejo; Rafael Pardo; Enrique Barrado; Pedro Sánchez Batanero

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
305 KB
Volume
1
Category
Article
ISSN
1040-0397

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✦ Synopsis

An indirect method has been developed for Ti(IV) determination at trace levels, by means of the formation of 11 -molybdotitanophosphoric acid, its isolation with an organic solvent, stripping with alkali, and measurement of the Mo(VI) by its catalytic effect on the polarographic reduction of hydrogen peroxide. A detection limit of 4.09 pg/liter can be achieved. The procedure has been applied successfully to a certified steel sample.

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Polarography was applied to the analysis of ethacrynic acid in the presence of its principal degradation product, a dimer. The application of the polarographic assay to dosage forms is discussed, and some stability data are given. Keyphrases 0 Ethacrynic acid-polarographic assay, dosage forms 0 Pol