2017
DOI: 10.21577/0100-4042.20170052
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Abstract: publicado na web em 15/05/2017 DETERMINATION OF SULFUR IN SHAMPOO BY UV-VIS SPECTROPHOTOMETRY: EVALUATION OF SAMPLE PREPARATION METHODS. Dry ashing, dissolution in aqueous medium or wet digestion methods were evaluated for sample preparation of shampoo for the subsequent indirect determination of sulfur by UV-Vis spectrophotometry. Among the sample preparation methods evaluated, microwave-assisted wet digestion using 7 mol L -1 HNO 3 was the most suitable method for this purpose. Accuracy of the proposed meth…

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