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High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry
Published on: April 23, 2019
[Study on the linked samples of methamphetamine identified by the impurity profile]
Jianxin Zhang1, Daming Zhang, Jing Qiao
1Forensic Medical examination Center of Beijing Public Security Bureau, Beijing 100085, China. zhangjianxin7292000@yahoo.com.cn
Wei Sheng Yan Jiu = Journal of Hygiene Research
|February 26, 2009
Summary
Gas chromatography impurity profiling successfully classified methamphetamine (MA) crystal samples from the same batch. This method aids in identifying linked MA samples for forensic analysis.
Area of Science:
- Forensic Chemistry
- Analytical Chemistry
Background:
- Methamphetamine (MA) crystal analysis is crucial for forensic investigations.
- Developing reliable methods for classifying MA samples is essential for law enforcement.
Purpose of the Study:
- To compare and classify methamphetamine (MA) crystal samples using their impurity profiles.
- To establish methods for identifying linked MA samples.
Main Methods:
- Samples of MA were dissolved and impurities extracted using ethyl acetate with internal standards.
- Analysis was performed using gas chromatography with a flame ionization detector.
- Seventeen characteristic peaks were selected for comparison, with data evaluated by Euclidean distance of relative peak areas.
Main Results:
- Eight different batches of MA, comprising 48 samples seized by the Beijing Public Security Bureau, were analyzed.
- The impurity profiling method successfully classified samples originating from the same batch into distinct groups.
Conclusions:
- The developed impurity profiling method is highly effective for classifying MA crystal samples.
- This technique provides a strong foundation for MA drug criminal inspection and identifying linked samples.
