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MDMA Electrochemical Determination and Behavior at Carbon Screen‐printed Electrodes: Cheap Tools for Forensic Applications
Author(s) -
Murilo Alves Gustavo,
Soares Castro Alex,
McCord Bruce Royston,
Oliveira Marcelo Firmino
Publication year - 2021
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.202060080
Subject(s) - detection limit , reproducibility , amperometry , linear sweep voltammetry , electrode , correlation coefficient , voltammetry , analytical chemistry (journal) , materials science , electrochemistry , chemistry , chromatography , cyclic voltammetry , computer science , machine learning
This article describes a method that uses Carbon Screen‐printed Electrodes (C‐SPEs) to detect 3,4 – methylenedioxyamphetamine (MDMA) by Linear Sweep Voltammetry in aqueous medium. Major parameters of this technique were evaluated aiming improve the method sensibility. Amines interference were conducted in order to verify disturbs at the MDMA response. The method obtained a linear response from 1×10 −5 mol L −1 to 1×10 −4 mol L −1 with linear correlation coefficient of 0.996, Amperometric Sensitivity (AS) of 0.025 A×mol −1 L, Limit of Detection (LOD) of 1,83×10 −6 mol L −1 , and Limit of Quantification (LOQ) of 6,11×10 −6 mol L −1 . The method applicability, reproducibility and reproducibility were carried over inter/intra days tests and its application on seized samples.