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Abstract A simple flow injection (FI) on-line clean-up system has been developed for microwave plasma-torch atomic emission spectrometry (MPTAES). A non-selective strongly acidic cation-exchange resin was used to achieve the goal of on-line clean-up. Ag and Zr, which form halogen-complex anions in halide acid media, and Cr, Mo, and P, which exist as acid group anions or acids (neutral) in acidic solution,...
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