The proposed method exhibited a limit of detection (LOD) of 0.5 mol L 1 and suitable electrochemical response stability using the same (N5) or different (N3) electrodes, both presenting a RSD lower than 1.6.Īdditionally, interference studies and application to MDPV sensing in reference samples provided by United Nations Office on Drugs and Crime (UNODC) were performed, confirming the potential of the proposed sensor for application in forensic analysis as a simple, fast and cost-effective screening method for MDPV.

The quantification of MDPV in seized drug samples was optimized for the first oxidation process (at 0.6 V vs Ag) in 0.1 mol L 1 Britton Robison (BR) buffer solution pH 6.0 at SPE-Gr, using adsorptive stripping differential pulse voltammetry (AdSDPV) detection. The electrochemical behavior of MDPV was studied by cyclic voltammetry (CV) at the surface of an unmodified glassy carbon electrode and a carbon graphite screen-printed electrode (SPE-Gr), where three irreversible oxidation processes were identified.

Santos a f Show more Get rights and content Abstract In this work, the electrochemical detection of 3,4-methylenedioxypyrovalerone (MDPV), a synthetic cathinone used as a stimulant drug, is presented for the first time. Richter e Sandro L Barbosa f Wallans T.P. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Novel terthiophene-substituted fullerene derivatives as easily accessible acceptor molecules for bulk-heterojunction polymer solar cells gpes The big defender acknowledges the Europa League second qualifying round tie against Trabzonspor was a hindrance. Autolab Gpes Software Upgrade Include SamsungĪndroid 5.0 Lollipop Statuses For Google Play Editions: HTC One, LG G Pad 8.3 And Sony Z Ultra In this work, GPEs are developed by incorporating different amount of EMImTFSI into the polymer electrolytes system.Īntisubcorrosive properties of poly(o-phenylenediamine)ZnO nanocomposites coated stainless steel The cyclovoltammetric (CV) characterization was carried out with an Autolab PGSTAT 128N potentiostat, run by a PC with GPES software.

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