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  1. No Access

    Article

    High-throughput simultaneous analysis of buprenorphine, methadone, cocaine, opiates, nicotine, and metabolites in oral fluid by liquid chromatography tandem mass spectrometry

    A method for simultaneous determination of buprenorphine (BUP), norbuprenorphine (NBUP), methadone, 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP), cocaine, benzoylecgonine (BE), ecgonine methyl este...

    Marta Concheiro, Teresa R. Gray, Diaa M. Shakleya… in Analytical and Bioanalytical Chemistry (2010)

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    Article

    Effect of hydrolysis on identifying prenatal cannabis exposure

    Identification of prenatal cannabis exposure is important due to potential cognitive and behavioral consequences. A two-dimensional gas chromatography–mass spectrometry method for cannabinol, Δ9-tetrahydrocannabi...

    Teresa R. Gray, Allan J. Barnes… in Analytical and Bioanalytical Chemistry (2010)

  3. No Access

    Article

    A liquid chromatography tandem mass spectrometry method for the simultaneous quantification of 20 drugs of abuse and metabolites in human meconium

    A method for the simultaneous quantification of 20 cocaine, amphetamine, opiate, and nicotine analytes in meconium, the first neonatal feces, by liquid chromatography tandem mass spectrometry was developed and...

    Teresa R. Gray, Diaa M. Shakleya… in Analytical and Bioanalytical Chemistry (2009)