In the present work, we describe electrochemical behaviour of two opioids structurally related to aroyl amides forensic interest, namely U-47700 and AH-7921. The data obtained allowed for mise-au-point a voltammetric determination protocol, that relies on differential pulse voltammetry (DPV) at glassy carbon electrode in ethanol/0.1 M lithium perchlorate/0.10 2,6-lutidine. To apply method analy...

The study of electrochemical systems using single-crystal electrodes under conditions that allow the occurrence an oscillatory response can be a valuable tool to obtain proper correlation between structure, composition, and electrocatalytic activity. Measurements with are usually performed in hanging meniscus configuration, so, it is essential understand impact different experimental parameters...

Voltammetric properties of electrodes made of multiple-walled carbon nanotubes (MWNTs) with different diameters were investigated by cyclic voltammetry. The results indicate that electrodes made of smaller MWNTs exhibit better voltammetric properties. In addition, electrodes made of mixed MWNTs with large diameter distribution possess the best voltammetric properties. The phenomenon can be expl...

Voltammetry studies of electrodeposition are growing rapidly. Yet, relations for the analysis reactions in voltammetry remain relatively obscure literature. The existing cyclic and square wave their limitations discussed to increase awareness. A retrospective is performed demonstrate impact model selection improving behavior with voltammetric data. repository models proposed further familiarity...

The electrochemical characteristics of Ti0.6Ir0.4O2/Ti and Ti0.6Ru0.4O2/ /Ti anodes prepared by the sol–gel procedure from the corresponding oxide sols, obtained by force hydrolysis of the corresponding metal chlorides, were compared. The voltammetric properties in H2SO4 solution indicate that Ti0.6Ir0.4O2/Ti has more pronounced pseudocapacitive characteristics, caused by proton-assisted, solid...

BACKGROUND A series of recently reported phenolic azo dyes 7a-e were prepared by coupling the thienyl diazonium sulfate of 3-Amino-4H-benzo[f]thieno[3,4-c](2H)chromen-4-one with selected diversely substituted phenolic and naphtholic derivatives. These compounds were evaluated for their antibacterial and antifungal activities. Furthermore their voltammetric behavior was compared at a glassy carb...

The acid-treated multi-walled carbon nanotubes (MWNTs), which were modified on the surface of gold electrode, offers substantial improvements in voltammetric sensitivity and selectivity towards the determination of dopamine (DA). It can inhibit the voltammetric response of ascorbic acid (AA) while the redox reaction of dopamine is promoted. When a differential pulse voltammetric (DPV) technique...