Lim H Y, Kwok S F
Bull Narc. 1981;33(1):31-41.
Comparative studies involving colour tests, thin-layer chromatography (TLC) and gas-liquid chromatography (GLC) were made on raw, prepared and dross opium with a view to establishing means for their differentiation. Analysis of a large number of samples found in south-east Asia showed the typical patterns and results to be quite distinctive in the qualitative and quantitative aspects. The relative proportions of the major alkaloids in the two chromatographic systems were used to advantage in the comparison. Prepared opium was found to have a characteristic yellow fluorescent spot on the TLC plate when viewed under long-wavelength ultraviolet light. No positive marker was found for dross opium, its unusual features being the relatively high morphine and codeine content and the absence of narcotine, meconic acid and especially thebaine. Most of the prepared opium samples were found to have been made from a mixture of raw and dross opium. The modified hallucinogen reagent of Maunder was found to be a suitable alternative chromogenic spray in the TLC analysis.
对生鸦片、精制鸦片和鸦片渣进行了涉及颜色测试、薄层色谱法（TLC）和气液色谱法（GLC）的比较研究，旨在建立区分它们的方法。对在东南亚发现的大量样本进行分析后发现，典型模式和结果在定性和定量方面都相当独特。在两种色谱系统中，主要生物碱的相对比例在比较中发挥了作用。当在长波长紫外光下观察时，发现精制鸦片在薄层色谱板上有一个特征性的黄色荧光斑点。未发现鸦片渣的阳性标记物，其异常特征是吗啡和可待因含量相对较高，且不含那可汀、袂康酸，尤其是蒂巴因。发现大多数精制鸦片样本是由生鸦片和鸦片渣混合制成的。发现Maunder改良的致幻剂试剂是薄层色谱分析中一种合适的替代显色喷雾剂。
