Determination of tin in marine sediments by slurry sampling atomic absorption spectrometry with electrothermal atomization using a permanent modifier
作者： Ryszard Dobrowolski , Magdalena Otto , Agnieszka Adamczyk
DOI: 10.1007/S00604-010-0299-Z
关键词:
摘要: Slurry sampling atomic absorption spectrometry with electrothermal atomization was used for the determination of tin in marine sediments. A mixture 4 μg iridium and 40 tungsten 12 niobium alone were as permanent modifiers. Suspensions prepared 7% nitric acid. The influence amounts on removal from graphite tubes modified by mechanism slurries studied detail. effect amount added iridium, analytical signal, soil matrix background signal is described. In order to prevent interferences sulfur compounds, barium chloride a modifier. Calibration performed directly using aqueous standards. analysis certified reference materials confirmed reliability approach. precision accuracy sediments this method acceptable.
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