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\bibitem{Blockhuys_etal2000} {\textquotedblleft}\textit{Assessing the molecular weight of a conducting polymer by grazing emission XRF}{\textquotedblright}. Blockhuys F, Claes M, Van Grieken R, Geise HJ, Analytical chemistry \textbf{72}, 3366 (2000).   http://doi.org/10.1021/AC990877K

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