Ms. Nicoleta Paduraru Profile

Nicoleta Paduraru

at Univ Dunarea de Jos din Galati

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Proceedings Article | 22 August 2014 Paper

Hyphenated GC-FTIR and GC-MS techniques applied in the analysis of bioactive compounds

Steluta Gosav, Nicoleta Paduraru, Mirela Praisler

Proceedings Volume 9286, 92862D (2014) https://doi.org/10.1117/12.2063898

KEYWORDS: Ions, Absorption, Spectroscopy, Infrared spectroscopy, Infrared radiation, Chromatography, Biological research, Mass spectrometry, Molecular photonics, Molecules

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The drugs of abuse, which affect human nature and cause numerous crimes, have become a serious problem throughout the world. There are hundreds of amphetamine analogues on the black market. They consist of various alterations of the basic amphetamine molecular structure, which are yet not yet included in the lists of forbidden compounds although they retain or slightly modify the hallucinogenic effects of their parent compound. It is their important variety that makes their identification quite a challenge. A number of analytical procedures for the identification of amphetamines and their analogues have recently been reported. We are presenting the profile of the main hallucinogenic amphetamines obtained with the hyphenated techniques that are recommended for the identification of illicit amphetamines, i. e. gas chromatography combined with mass spectrometry (GC-MS) and gas chromatography coupled with Fourier transform infrared spectrometry (GC-FTIR). The infrared spectra of the analyzed hallucinogenic amphetamines present some absorption bands (1490 cm^-1, 1440 cm^-1, 1245 cm^-1, 1050 cm^-1 and 940 cm^-1) that are very stable as position and shape, while their intensity depends of the side-chain substitution. The specific ionic fragment of the studied hallucinogenic compounds is the 3,4-methylenedioxybenzyl cation (m/e = 135) which has a small relative abundance (lesser than 20%). The complementarity of the above mentioned techniques for the identification of hallucinogenic compounds is discussed.

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