Transcription of The Mass Spectrum of Cocaine: Deuterium Labeling and …
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The Mass Spectrum of Cocaine: Deuterium Labeling and …
The mass Spectrum of Cocaine: Deuterium Labeling and MS/MS Studies R. Martin Smith*. rMS Workshops, LLC. 6442 Dylyn Drive Madison, WI 53719. [email: rmsworkshopsllc -at- ]. John F. Casale Department of Justice Drug Enforcement Administration Special Testing and Research Laboratory 22624 Dulles Summit Court Dulles, VA 20166. [email address withheld at author's request]. ABSTRACT: Seven derivatives of cocaine (l-2-exo-carbomethoxy-3-exo-benzoyloxytr opane; Ia) were synthesized in which the hydrogen (H) atoms at various positions were replaced by Deuterium ( 2H = D) specifically, at the N-methyl, O-methyl, phenyl, 2-, 3-, and 4- positions, as well as at the combined 1-, 5-, 6-, and 7- positions (Ib - Ih, respectively).
MSD was operated in the electron ionization (EI) mode with an ionization energy (I.E.) of 70 eV and a scan range of 34-700 m/z units at 1.34 scans/s. The auxiliary transfer line to the MSD and the source were maintained at 280 oC and 230 C, re-spectively. High Resolution-Mass Spectrometry (HR-MS)
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