Development of an on-site screening system for amphetamine-type stimulant tablets with a portable attenuated total reflection Fourier transform infrared spectrometer.

Development of an on-site screening system for amphetamine-type stimulant tablets with a portable attenuated total reflection Fourier transform infrared spectrometer. Research Abstract Details 

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Development of an on-site screening system for amphetamine-type stimulant tablets with a portable attenuated total reflection Fourier transform infrared spectrometer. Abstract Text:

Kenji Tsujikawa,Kenji Kuwayama,Hajime Miyaguchi,Tatsuyuki Kanamori,Yuko T Iwata,Takemi Yoshida,Hiroyuki Inoue,

We tried to develop a library search system using a portable, attenuated total reflection Fourier transform infrared (ATR-FT-IR) spectrometer for on-site identification of 3,4-methylenedioxymethamphetamine (MDMA) and 3,4-methylenedioxyamphetamine (MDA) tablets. The library consisted of the spectra from mixtures of controlled drugs (e.g. MDMA and ketamine), adulterants (e.g. caffeine), and diluents (e.g. lactose). In the seven library search algorithms, the derivative correlation coefficient showed the best discriminant capability. This was enhanced by segmentation of the search area. The optimized search algorithm was validated by the positive (n=154, e.g. the standard mixtures containing the controlled drug, and the MDMA/MDA tablets confiscated) and negative samples (n=56, e.g. medicinal tablets). All validation samples except for four were judged truly. Final criteria for positive identification were decided on the basis of the results of the validation. In conclusion, a portable ATR-FT-IR spectrometer with our library search system would be a useful tool for on-site identification of amphetamine-type stimulant tablets.

Development of an on-site screening system for amphetamine-type stimulant tablets with a portable attenuated total reflection Fourier transform infrared spectrometer. Publishing Authors By Initials

K Tsujikawa,K Kuwayama,H Miyaguchi,T Kanamori,YT Iwata,T Yoshida,H Inoue,

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Development of an on-site screening system for amphetamine-type stimulant tablets with a portable attenuated total reflection Fourier transform infrared spectrometer. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Analytica chimica acta

VOLUME: 608

Page Numbers: 95-103

Journal Abbreviation: Anal. Chim. Acta

ISSN: 1873-4324

DAY: 8

MONTH: 12

YEAR: 2007

Development of an on-site screening system for amphetamine-type stimulant tablets with a portable attenuated total reflection Fourier transform infrared spectrometer. Information

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LANGUAGE: eng

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AFFILIATION: National Research Institute of Police Science, 6-3-1, Kashiwanoha, Kashiwa, Chiba 277-0882, Japan. tujikawa@nrips.go.jp

Country: Netherlands

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MEDLINETA: Anal Chim Acta

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