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\bibitem{Poels_etal1998} {\textquotedblleft}\textit{Microprobe speciation analysis of inorganic solids by Fourier transform laser mass spectrometry}{\textquotedblright}. Poels K, van Vaeck L, Gijbels R, Analytical chemistry \textbf{70}, 504 (1998).   http://doi.org/10.1021/ac9709108

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