Intake of nickel and vanadium by humans. A survey of selected diets

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Abstract
The nickel and vanadium contents of nine institutional diets were determined by atomic absorption spectrometry with background correction. The following values were obtained for nickel: mean concentration, 0.27 ± 0.02 µg/g (dry weight); range, 0.19 to 0.41 µg/g; mean intake, 165 ± 11 µg/day or 75 ± 10 µg/1000 cal. The respective values for vanadium were: 0.032 ± 0.004 µg/g (dry weight); 0.019 to 0.050 µg/g; 20.4 ± 2.3 µg/day or 8.9 ± 1.0 µg/1000 cal. Thus, vanadium is present at approximately one order of magnitude less than nickel.

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