期刊
FORENSIC SCIENCE INTERNATIONAL
卷 226, 期 1-3, 页码 183-187出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.forsciint.2013.01.014
关键词
Mitragyna speciosa; Mitragynine; Ketum extracts; Ketum drink; HPLC-DAD
资金
- Ministry of Science, Technology and Innovation (MOSTI)
- Universiti Sains Malaysia Research University grant
- Universiti Sains Malaysia fellowship scheme from Institute for Postgraduate Studies, Universiti Sains Malaysia
Mitragyna speciosa, a native plant of Thailand and Malaysia known as 'ketum', is a plant of considerable interest. It exhibits strong antinociceptive effect and yet, acts like a psychostimulant. Due to the affordability and its ease of availability, the abuse of this plant as a substitute for other banned narcotics has become a major concern in many societies. In countries such as Thailand, Myanmar, Australia and Malaysia, the use of ketum is illegal. However, for a person to be charged for possessing or selling ketum, a reliable analytical method is needed in order to detect and identify the plant and its products. Mitragynine is the major alkaloid of ketum. This compound manifests its antinociceptive effects by acting on the opioid receptors. Since M. speciosa contain large quantity of mitragynine and it is exclusive to the species, the present analytical method is developed and validated for the purpose of screening ketum products based on this unique compound as the analytical marker. The method uses a HPLC-DAD system with Inertsil C8 (4.6 mm x 150 mm, 5 mu m) as the column and a mixture of acetonitrile and formic acid, 50: 50 (v/v), as the mobile phase. This method not only detects mitragynine, it can also be used to quantify the amount of mitragynine in the sample. The limit of detection is 0.25 mu g/ml, while the limit of quantification is 0.50 mu g/ml. The method is quick, simple and reliable with an accuracy of 97.27-101.74% and coefficient of variations of between 0.91 and 3.96%. The method has been tested and found suitable for the identification and quantification of mitragynine in dried plants, a variety of ketum extracts, as well as ketum drink obtained from the market. (C) 2013 Elsevier Ireland Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据