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Bijlsma L, Sancho JV, Pitarch E, Ibáñez M, Hernández F. Simultaneous ultra-high-pressure liquid chromatography-tandem mass spectrometry determination of amphetamine and amphetamine-like stimulants, cocaine and its metabolites, and a cannabis metabolite in surface water and urban wastewater. J Chromatogr A. 2009 Apr 10;1216(15):3078–89. doi: 10.1016/j.chroma.2009.01.067. PMID: 19201418. |