Aqueous Phase Hexylchloroformate Derivatization and Solid Phase Microextraction: Determination of Benzoylecgonnine in Urine by Gas Chromatography-Quadrupole Ion Trap Mass Spectrometry

  • Brad J. Hall, Aashish R. Parikh, Jennifer S. Brodbelt
  • Journal of Forensic Sciences, May 1999, ASTM International
  • DOI: 10.1520/jfs14504j

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