Electrochemical Study and Determination of Dinitramine Using Glassy Carbon Electrodes Modified with Multi-walled Carbon Nanotubes

Abstract

A novel and sensitive method is described for voltammetric study and determination of dinitramine, commonly used pesticide, based on its electrochemical reduction at a multi-walled carbon nanotube (MWCNT) modified glassy carbon electrode. Cyclic voltammetry (CV) was used to investigate the redox properties of this modified electrode at various solutions pH values and various scan rates. CV studies indicated that the reduction process has an irreversible and diffusion-like behavior in a reduction mechanism with equal number of electrons and protons. The square-wave voltammetry (SWV) was applied as a very sensitive voltammetric detection method for the determination of dinitramine. Under optimal conditions, the proposed method exhibited acceptable analytical performances in terms of linearity (over the concentration range from 4.0 × 10 −8 to 1.4 × 10 −6 and 1.4 × 10 ) and repeatability (RSD = 2.36%, n = 10, for 5.0 × 10 −6 mol L −1 dinitramine). To further validate its possible application, the method was used for the quantification of dinitramine in water samples.

An application of a glassy carbon electrode and a glassy carbon electrode modified with multi-walled carbon nanotubes in electroanalytical determination of oxycarboxin

“…Table 4 presents the comparison of results obtained for other organic compounds using glassy carbon electrode modified with multi-walled carbon nanotubes. As can be seen, the results obtained in this work for oxycarboxin using GCE/MWCNTs (0.5) , i.e., linear range and LOD value, are in good agreement with the results presented in the literature [23,[36][37][38][39][40][41].…”

Fabrication of a new modified gold electrode based on gold nanoparticles and nanomagnetic Fe3O4/SiO2–(CH2)3–SH core shell for electrochemical evaluation and determination of dinitramine herbicide in water

“…Dinitramine is detected mostly using chromatographic technology, such as gas chromatography, 3,4 electron captured gas chromatography, 5 gas chromatography mass-spectrometry with solid-phase micro extraction, 6 and high-performance liquid chromatography; 7 computational analysis of the electrostatic potential, 8 and electrochemistry 9 has also been reported for the detection of dinitramine. However, few electrochemical techniques, which are oen simple and less expensive, have been used to determine dinitramine.…”

A mini-review of electroanalytical methods for pesticides quantification

“…The data about the detection limit and the linear potential is not given, since the purpose of the paper was to show that it is possible to separate pesticides from two classes of compounds (organophosphates and carbamates) on the basis of the fact that pesticides from the carbamate group have a peak at +1.4 V, and those of the organophosphate group at -0.6 V (Selva et al, 2017.). The applied modifiers are very diverse, ranging from those based on carbon nanoparticles (Teadoum et al, 2016;Xu F. et al, 2017;Xu G. et al, 2017;Irandoust & Haghighi 2016;Yao et al, 2014;Feng et al, 2015;Yang et al, 2015;), to combinations of various types of nanoparticles with biocomponents (Cai et al, 2014;Chauhan et al, 2015;Guler et al, 2017;Zhang et al, 2015).…”