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Modified Method for Detection of Benzoylecgonine in Human Urine by GC-MS: Derivatization Using Pentafluoropropanol/Acetic Anhydride

Michelle C Serafin, Kasandra M Paulemon, Zachary J Fuller, William E Bronner

J Anal Toxicol. 2017 May 1;41(4):340-341.

PMID: 28111370

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.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP356423 Pentafluoropropionic anhydride Pentafluoropropionic anhydride 356-42-3 Price
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