DETERMINAÇÃO DE ENXOFRE EM SHAMPOO POR ESPECTROFOTOMETRIA UV-VIS: AVALIAÇÃO DE MÉTODOS DE PREPARO DE AMOSTRAS
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 HNO3 w...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422017000700785&lng=en&tlng=en |