Determination of chromium in biological matrices by neutron activation: Application to standard reference materials
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Chromium is recognized to be an essential trace element in several biological systems. It exists in many biological materials in a variety of chemical forms and very low concentration levels which cause problems for many analytical techniques. Both instrumental and destructive neutron activation analysis were used to determine the chromium concentration in Orchard Leaves, SRM 1571, Brewers Yeast, SRM 1569, and Bovine Liver, SRM 1577. Some of the problems inherent with determining chromium in certain biological matrices and the data obtained here at the National Bureau of Standards using this technique are dicussed.
KeywordsChromium Concentration Bovine Liver Isotope Dilution Mass Spectrometry Brewer Yeast Orchard Leave
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