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).
that in the spectrum of the D-labeled derivative. A compilation of m/z values for selected peaks in the spec-trum of Ia and for the corresponding peaks in the spectrum of each of the derivatives is shown in Table I. In many cases, each peak in the spectrum of Ia can be correlated to a single peak in the spectrum of each derivative.
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