title: Modified Method for Detection of Benzoylecgonine in Human Urine by GC-MS: Derivatization Using Pentafluoropropanol/Acetic Anhydride.
abstract: An existing GC-MS method for detecting benzoylecgonine (BZE) in urine was modified by changing derivatizing reagents. This method modification presents a cost-effective alternative derivatization procedure for the detection of BZE in urine by GC-MS. The combination of pentafluoropropanol and acetic anhydride was found to produce the same reaction product for BZE as pentafluoropropanol with pentafluoropropionic anhydride, while reducing reagent cost. With no anhydride present, derivatization of BZE by pentafluoropropanol did not occur.
authors.affiliation: United States Army Forensic Toxicology Drug Testing Laboratory, Fort Meade, MD 20755, USA.
authors.forename: Michelle C
authors.initials: MC
authors.lastname: Serafin
authors.affiliation: United States Army Forensic Toxicology Drug Testing Laboratory, Fort Meade, MD 20755, USA.
authors.forename: Kasandra M
authors.initials: KM
authors.lastname: Paulemon
authors.affiliation: United States Army Forensic Toxicology Drug Testing Laboratory, Fort Meade, MD 20755, USA.
authors.forename: Zachary J
authors.initials: ZJ
authors.lastname: Fuller
authors.affiliation: United States Army Forensic Toxicology Drug Testing Laboratory, Fort Meade, MD 20755, USA.
authors.forename: William E
authors.initials: WE
authors.lastname: Bronner
mesh_terms: D000089:Acetic Anhydrides / Q000737:chemistry; D003042:Cocaine / Q000031:analogs & derivatives* / Q000652:urine; D005466:Fluorocarbons / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D013287:Illicit Drugs / Q000652:urine*; D015813:Substance Abuse Detection / Q000379:methods*
chemical_list: D000089:Acetic Anhydrides; D005466:Fluorocarbons; D013287:Illicit Drugs; C033093:perfluoropropionic acid; C005618:benzoylecgonine; D003042:Cocaine