Electrochemical behavior of cocaine cutting agents at the polarized liquid-liquid interface

In this work, we have used cyclic voltammetry to investigate the interfacial behavior of cocaine cutting agents at electrified liquid-liquid interface formed between a solution water and 1,2-dichloroethane phases. Among 27 chemical species adulterate street samples, only 8 were detectable in available potential window. These include procaine, lidocaine, levamisole, hydroxyzine, caffeine, phenylethylamine, diltiazem, diphenhydramine. From calibration curves obtained using voltammetric data, extracted electroanalytical parameters such as detection sensitivities, limits detection, quantifications. Also, for each electrochemically active drug, calculated diffusion coefficients plotted ion partition concentration fraction diagrams. All information is discussed view sensors development focused on its from demanding matrix defined by samples composition.