Mercury Extraction from Multivitamin Mixtures Followed by Determination Using FI-CV-ICP-MS
Ana Viana,
Cristiane Pappis,
Viviane Garcia
et al.
Abstract:This study deals with a method for Hg determination in multivitamin supplements. Mercury was extracted with L-cysteine prior to its determination using flow injection-cold vapor generationinductively coupled plasma-mass spectrometry. A miniaturized flow injection system was employed for Hg vapor generation and its introduction in the plasma whereas 1% (v v-1) HCl and 0.005% (m v-1) NaBH4 were used for that purpose. Mercury extraction was carried out using 6 mL of 1% m v-1 L-cysteine and 50 mg of sample. Accura… Show more
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