Resumen de Determination of Inorganic Ion Profiles of Illicit Drugs by Capillary Electrophoresis
Elizabeth Evans, Carolina Costrino, Claudimir L. do Lago, Carlos D. Garcia, Claude Roux, Lucas Blanes
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 lmol/L to 1.25 lmol/L for the 10 selected cations, and from 0.13 lmol/L to 1.03 lmol/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.
