Mercury speciation in environmental samples by cold vapour atomic absorption spectrometry with in situ preconcentration on a gold trap
作者： Paola Rivaro , Carmela Ianni , Francesco Soggia , Roberto Frache
DOI: 10.1007/S00604-006-0712-9
关键词: Atomic absorption spectroscopy 、 Mercury (element) 、 Certified reference materials 、 Pyrolytic carbon 、 Sample preparation 、 Graphite 、 Analytical chemistry 、 Chemistry 、 Central composite design 、 Analyte
摘要: A method has been developed for the determination of total and organic mercury in biological materials sediments. microwave assisted mineralization mercury, after its extraction from matrix, is described. This procedure warrants complete transformation Hg(II) and, consequently, quantitative reduction to Hg(0). The conditions were optimized by a central composite design. preconcentration analyte achieved amalgamation on trap system, consisting pyrolytic graphite platform wound gold wire. Mercury was determined cold vapour atomic absorption spectrometry. validated analysis two certified reference applied species mussel tissues simple practical, offers advantage not requiring special equipment measure inorganic simultaneously.
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