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《Journal of Xiamen University(Natural Science)》 2000-01
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Determination of Methamphetamine and Amphetamine by Capillary Zone Electrophoresis

CHEN Wei, CHEN Xi, SUN Zhen hua, WANG Xiao ru (Dept.of Chem.,Lab of Anal.Sce.,Xiamen Univ.,361005, Xiamen,China) WANG Bo (Inst. of Criminal Scie. and Tech., Security Bureau of Xiamen, Xiamen,361005,China)  
The object of this work is to develop a new capillary zone electrophoresis method for the rapid detection of methamphetamine and amphetamine on a single run. Analysis was performed on a polyimide coated fused silica capillary of 35 cm total length and 75 μm i.d.. The detections of methamphetamine and amphetamine were carried out at the wavelength of 195 nm. According to the experimental results, the optimum separation condition was selected as: 350 mM phosphate buffer of pH 3.10, 20℃ and 10.5 kV. Under this experimental condition, methamphetamine and amphetamine could be separated effectively in less than six minutes. The R.S.D. of peak area for 14 runs was 2.2% for methamphetamine, 3.1% for amphetamine, respectively. The peak areas of amphetamine and methamphetamine and their corresponding concentrations have good linear relationships from 5 ppm to 500 ppm ( r 0.999). The detection limits were 3.1 ppm for methamphetamine, 2.6 ppm for amphetamine at a signal to noise ration (S/N) of 3. Two batches of samples were analysed by this method. The contents of these two batches seizures were 95.72%± 0.1% and 97.59%±0.2%, respectively.
【Fund】: 国家自然科学基金!(29877022)
【CateGory Index】: R917
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【References】
Chinese Journal Full-text Database 1 Hits
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1 Chen Xi *, Li Meijin, Li Zhen, Yi Changqing, Wang Xiaoru (The Key Laboratory of Analytical Sciences of Ministry of Education, Department of Chemistry, Xiamen University, Xiamen 361005) Wang Bo (Institute of Criminal Science and Technology of Xia;Study of the Electrochemiluminescence Based on Tris(2,2′-bipyridyl)ruthenium Ⅱand Some Nervous Amine Compounds Using Flow Injection Analysis[J];Chinese Journal of Analytieal Chemistry;2002-05
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