A gas chromatographic-positive ion chemical ionization-mass spectrometric method for determination of cocaine, benzoylecgonine, ecgonine methyl ester, and norcocaine in plasma: Detection of norcocaine in plasma after oral administration of cocaine
Ac. Spanbauer et al., A gas chromatographic-positive ion chemical ionization-mass spectrometric method for determination of cocaine, benzoylecgonine, ecgonine methyl ester, and norcocaine in plasma: Detection of norcocaine in plasma after oral administration of cocaine, J ANAL TOX, 24(6), 2000, pp. 453-455