Electrified Soft Interface as a Selective Sensor for Cocaine Detection in Street Samples

Journal article (2018)

Authors

L. Poltorak OLD ChemE/Organic Materials and Interfaces
I.M.A. Eggink Applied Sciences
Marnix Hoitink Student
Ernst J. R. Sudhölter OLD ChemE/Organic Materials and Interfaces
M. de Puit OLD ChemE/Organic Materials and Interfaces , Nederlands Forensisch Instituut (NFI)
Research Group
OLD ChemE/Organic Materials and Interfaces
Copyright: © 2018 L. Poltorak, I.M.A. Eggink, Marnix Hoitink, Ernst J. R. Sudhölter, M. de Puit
DOI: https://doi.org/10.1021/acs.analchem.8b00916
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Published Date

21-05-2018

Language

English

Research Group

OLD ChemE/Organic Materials and Interfaces

Abstract

A straightforward, direct, and selective method is presented for electrochemical cocaine identification in street samples. The sensing mechanism is based on a simple ion transfer reaction across the polarized liquid-liquid interface. The interfacial behavior of a number of cutting agents is also reported. Interfacial miniaturization has led to improved electroanalytical properties of the liquid-liquid interface based sensor as compared with the macroscopic analogue. The reported method holds great potential to replace colorimetric tests with poor selectivity for on-site street sample analysis.