Issue 20, 2018

Electrochemical sensing of NBOMes and other new psychoactive substances in blotting paper by square-wave voltammetry on a boron-doped diamond electrode

Abstract

The electrochemical quantification of new psychoactive substances 2,5-dimethoxy-N-(2-methoxybenzyl)phenethylamines, commonly described as NBOMes and their correlates, 2,5-dimethoxy phenethylamine structures, also known as 2C family compounds, in seized blotting paper is presented using square-wave voltammetry (SWV) on a boron-doped diamond (BDD) electrode. Under optimized experimental conditions, linear analytical curves were obtained in the range from 1 to 555 μmol L−1 for three NBOMes and 2C–B with detection limit values between 0.1 and 0.3 μmol L−1 (corresponding to 0.03 and 0.10 μg mL−1) and a repeatability of around 1% (n = 10) for the detection of all analytes. The accuracy of the proposed method was evaluated using seized samples, which were also analyzed by quadrupole time of flight liquid chromatography-mass spectrometry (QTOF LC-MS), with perfect agreement, and free from interference of the sample matrix (recovery values between 98 and 110%).

Graphical abstract: Electrochemical sensing of NBOMes and other new psychoactive substances in blotting paper by square-wave voltammetry on a boron-doped diamond electrode

Article information

Article type
Paper
Submitted
20 Feb 2018
Accepted
14 Apr 2018
First published
16 Apr 2018

Anal. Methods, 2018,10, 2411-2418

Electrochemical sensing of NBOMes and other new psychoactive substances in blotting paper by square-wave voltammetry on a boron-doped diamond electrode

G. A. Souza, D. M. Pimentel, A. B. Lima, T. J. Guedes, L. C. Arantes, A. C. de Oliveira, R. M. F. Sousa, R. A. A. Muñoz and W. T. P. dos Santos, Anal. Methods, 2018, 10, 2411 DOI: 10.1039/C8AY00385H

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