Chromatography

Researchers from University of Tartu, Institute of Chemical Physics discuss findings in chromatography

Published in Telemedicine Law Weekly, September 22nd, 2007

Fresh data on chromatography are presented in the report ""Fast peaks" in chromatograms of Sudan dyes. The analysis of Sudan dyes has gained considerable attention during last years. In several publications multiple peaks in chromatograms of Sudan III and Sudan IV have been detected," researchers in Jakobi, Estonia report.

"It is demonstrated in this work that if the sample is kept in darkness before analysis, only one chromatographic peak appears for Sudan III or Sudan IV. In normal lighting conditions two peaks are observed. This light-induced effect can lead to under-or overestimation of the Sudan III and Sudan IV content by 10% and false-positive detection of Sudan...

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Source: Telemedicine Law Weekly (2007-09-22)

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