Rapid and sensitive determination of morphine in street opium samples by thermal desorption gas chromatography using a microfurnace pyrolyzer |
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Authors: | Hida Minemasa Mitsui Toshiyuki Tsuge Shin Ohtani Hajime |
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Institution: | Criminal Investigation Laboratory, Aichi Pref. Police HDQs, 2-1-1, Sannomaru, Nakaku, Nagoya 460-8502, Japan. DZX02003@nifty.ne.jp |
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Abstract: | Thermal desorption of the alkaloids in opium samples at 300 degrees C using a vertical microfurnace pyrolyzer was followed by their on-line gas chromatographic (GC) analysis on a large-bore glass capillary column. This method permitted rapid and sensitive determination of the content of the main alkaloid, morphine, in the small (ca. 100 microg) opium samples with a relative standard deviation within 4% for 5 runs. The observed morphine contents of about 12 to 15 w/w% in the given opium samples were in fairly good agreement with those estimated by a conventional GC-MS method. |
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Keywords: | Thermal desorption Gas chromatography Opium alkaloids Morphine Microfurnace pyrolyzer |
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