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Detection of Three Common Organic Explosives Using Capillary Electrophoresis
Collaborative Innovation Center of Judicial Civilization, Beijing, China
Institute of Forensic Science, Ministry of Public Security, Beijing, China
Institute of Forensic Science, Ministry of Public Security, Beijing, China
Collaborative Innovation Center of Judicial Civilization, Beijing, China
Institute of Forensic Science, Ministry of Public Security, Beijing, China
Institute of Forensic Science, Ministry of Public Security, Beijing, China
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
Collaborative Innovation Center of Judicial Civilization, Beijing, China
Key Laboratory of Evidence Science, China University of Political Science and Law, Ministry of Education, Beijing, China
Institute of Forensic Science, Ministry of Public Security, Beijing, China
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
- 1 Collaborative Innovation Center of Judicial Civilization, Beijing, China
- 2 Institute of Forensic Science, Ministry of Public Security, Beijing, China
- 3 Institute of Forensic Science, Ministry of Public Security, Beijing, China
- 4 Collaborative Innovation Center of Judicial Civilization, Beijing, China
- 5 Institute of Forensic Science, Ministry of Public Security, Beijing, China
- 6 Institute of Forensic Science, Ministry of Public Security, Beijing, China
- 7 Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
- 8 Collaborative Innovation Center of Judicial Civilization, Beijing, China
- 9 Key Laboratory of Evidence Science, China University of Political Science and Law, Ministry of Education, Beijing, China
- 10 Institute of Forensic Science, Ministry of Public Security, Beijing, China
- 11 Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
Journal of Materials Science and Chemical Engineering·Volume 04 (2016)·Pages 17–25·Published 26 May 2016·DOI10.4236/msce.2016.46003
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Abstract
In this article, a detection method for organic explosives by capillary electrophoresis (CE) is developed based on previous detection techniques. Firstly, a buffer solution consisting of 50 mmol·L-1 sodium dodecyl sulfate (SDS), 20 mmol·L-1 sodium tetraborate and 5% methanol was prepared and the UV detection in this buffer solution was conducted for three common organic explosives, including TNT, DNT and PETN. Then, the capillary UV detection method was investigated in terms of the transition time repeatability, the linear relationship between mass concentration and peak area and the limit of detection. The results revealed good reliability and stability of this method. In addition, these samples were characterized by photodiode array detector (PDA) to verify the qualitative results of UV detection.
KeywordsOrganic ExplosivesCapillary Electrophoresis (CE)UV Detection
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