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Determination of Inorganic Ion Profiles of Illicit Drugs by Capillary Electrophoresis |
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| Authors: | Elizabeth Evans B.S. Carolina Costrino B.S. Claudimir L. do Lago Ph.D. Carlos D. Garcia Ph.D. Claude Roux Ph.D. Lucas Blanes Ph.D. |
| Affiliation: | 1. Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX, 78249;2. Departmento de Química Fundamental, Instituto de Química, Universidade de S?o Paulo, S?o Paulo, Brazil;3. Centre for Forensic Science, University of Technology, Sydney, Broadway, NSW,2001 NSW, Australia;4. Additional information and reprint requests:;5. Lucas Blanes, Ph.D.;6. Postdoctoral Fellow;7. Centre for Forensic Science;8. University of Technology;9. Sydney, Broadway;10. NSW 2001;11. Australia;12. E‐mail: |
| Abstract: | A portable capillary electrophoresis instrument with dual capacitively coupled contactless conductivity detection (C4D) was used to determine the inorganic ionic profiles of three pharmaceutical samples and precursors of two illicit drugs (contemporary samples of methylone and para‐methoxymethamphetamine). The LODs ranged from 0.10 μmol/L to 1.25 μmol/L for the 10 selected cations, and from 0.13 μmol/L to 1.03 μmol/L for the eight selected anions. All separations were performed in less than 6 min with migration times and peak area RSD values ranging from 2 to 7%. The results demonstrate the potential of the analysis of inorganic ionic species to aid in the identification and/or differentiation of unknown tablets, and real samples found in illicit drug manufacture scenarios. From the resulting ionic fingerprint, the unknown tablets and samples can be further classified. |
| Keywords: | forensic science capillary electrophoresis contactless conductivity detection ion analysis C4D illicit drugs |