Spectrophotometric determination of chromium in water, rice and vegetable samples

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Author: 
Dao Van Bay and Khuat Quang Son
Abstract: 

Chromium (VI) has been determined with 1,5-diphenylcarbazide under conditions like pH = 1.65; the ratio of nDPC/(nCr(VI)) = 2.18 (by mol); The calibration curve for determination of chromium was also established as A = (0.8324 ± 0.00901).CCr + (0.0086 ± 0.00506). The total chromium in the water, rice and water spinach was analyzed. The obtained results of chromium concentrations in these samples showed that the samples were not polluted by chromium.

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