✦ LIBER ✦
Rapid and sensitive determination of morphine in street opium samples by thermal desorption gas chromatography using a microfurnace pyrolyzer
✍ Scribed by Minemasa Hida; Toshiyuki Mitsui; Shin Tsuge; Hajime Ohtani
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 198 KB
- Volume
- 27
- Category
- Article
- ISSN
- 1615-9306
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✦ Synopsis
Abstract
Thermal desorption of the alkaloids in opium samples at 300°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 μg) 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.