Potentially Toxic Elements in Commercial Soap and Powder Detergent Samples
Briyitte Sofia Torres,
Ihasmyn Nunes,
Nattany Tayany de Paula
et al.
Abstract:Dry decomposition, wet digestion, and dissolution in aqueous medium for direct analysis were evaluated for the preparation of eight samples of liquid and bar soap and one powder detergent for later determination of Cd, Mg, Pb, and Zn by inductively coupled plasma optical emission spectroscopy (ICP OES). The evaluation of the best conditions for digestion of the samples were chosen from a set of tests where conventional heating using 1 mol L-1 HNO3 with addition of 30% H2O2 proved to be the most efficient metho… Show more
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