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Blood Research

Reports Summarize Blood Research Study Results from University of Gazi

Published in Blood Weekly, June 30th, 2011

2011 JUN 30 -- "In this work, direct and indirect methods for determination of vitamin K-3 were developed using differential pulse polarography," scientists writing in the Turkish Journal of Chemistry report.

"The reaction between sulfite and the quinone (Q) form of vitamin K-3 was used for indirect determination, since the sulfite peak at -0.7 V is sharp and very reproducible in 0.1 M HAc NaAc (pH = 5.5). It was found that at pH 4.5-5.5, this reaction was quantitative and very fast when the temperature was 45 degrees C. For its direct determination, on the other hand, vitamin K-3 was standardized by the indirect method using standard sulfite as the...

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