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\bibitem{Daems_etal2015} {\textquotedblleft}\textit{Potentiometric detection in UPLC as an easy alternative to determine cocaine in biological samples}{\textquotedblright}. Daems D, van Nuijs ALN, Covaci A, Hamidi-Asl E, Van Camp G, Nagels LJ, Biomedical chromatography \textbf{29}, 1124 (2015).   http://doi.org/10.1002/BMC.3400

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