## Abstract A rapid and sensitive method for the simultaneous determination of alfentanyl, sufentanyl and fentanyl (and its major metabolite norfentanyl) in urine was developed and validated. The method involved a liquidβliquid extraction in alkaline conditions, derivatization with pentafluoropropi
β¦ LIBER β¦
Detection Times of Marijuana Metabolites in Urine by Immunoassay and GC-MS
β Scribed by Huestis, M. A.; Mitchell, J. M.; Cone, E. J.
- Book ID
- 118119992
- Publisher
- Preston Publications
- Year
- 1995
- Tongue
- English
- Weight
- 673 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0146-4760
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