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Comparison and Evaluation of the Quick Purification Methods of Methamphetamine Hydrochloride From Dimethyl Sulfone for Spectroscopic Identification

Comparison and Evaluation of the Quick Purification Methods of Methamphetamine Hydrochloride From Dimethyl Sulfone for Spectroscopic Identification

Hiroki Segawa, Kento Kumisaka, Ritsuko Sugita, Yuko T Iwata, Tadashi Yamamuro, Kenji Kuwayama, Kenji Tsujikawa, Tatsuyuki Kanamori, Hiroyuki Inoue

Forensic Sci Int. 2018 Jan;282:86-91.

PMID: 29174515

Abstract:

Methods to quickly purify methamphetamine hydrochloride from the cutting agent dimethyl sulfone for subsequent identification of confiscated crystalline samples using infrared absorption spectroscopy were compared and evaluated. Although sequential solvation and reprecipitation methods were simple, spectral contamination from dimethyl sulfone was inevitable and might affect the interpretation of the spectra. In addition, methamphetamine hydrochloride and dimethyl sulfone could form a solid solution because of solvation of both crystals into a single solution layer. By contrast, sublimation was an effective method for separation of methamphetamine hydrochloride and dimethyl sulfone. Sublimation combined with infrared absorption spectroscopy enabled rapid identification of crystalline methamphetamine hydrochloride.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP67710-A	Dimethyl sulfone		67-71-0	Price

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