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Electromembrane extraction (EME) was performed from aqueous samples and from aqueous samples containing methanol, ethanol, dimethyl sulfoxide, and acetonitrile. The basic drugs pethidine, haloperidol, nortriptyline, methadone and loperamide were used as model analytes. Reversed phase (C18) HPLC with UV (235nm) and MS detection was used for analysis of the samples. With no organic solvent in the sample,...
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