Abstract
A gas chromatograph/Fourier transform-infrared spectrometric analysis of benzophenones, as hydrolyzed products of benzodiazepines, was evaluated and the vapor phase spectra obtained were compared with those measured in the condensed phase. Each infrared spectrum obtained in the vapor phase showed a much greater difference in comparison to differences found in those in the condensed phase, especially in the fingerprint region. The identification of 14 benzophenones by their infrared spectra in the vapor phase was possible. The detection limits for these benzophenones were between 50 – 100 ng with high signal-to-noise ratios. The vapor phase spectra of the benzophenones were unique and the analytical method allowed the differentiation of closely related classes of drugs, such as benzophenones.
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