4.8 Article

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

Journal

ANALYTICAL CHEMISTRY
Volume 90, Issue 12, Pages 7428-7433

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.8b00916

Keywords

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Funding

  1. department of Chemical Engineering (TU Delft)

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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.

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