Voltammetric determination of the herbicide propham on glassy carbon electrode modified with multi-walled carbon nanotubes

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].…”

“…The most commonly used as working electrodes in electroanalytical chemistry are carbonbased electrodes, such as graphite [11][12][13], glassy carbon [14,15], or carbon paste electrodes [16,17]. In order to improve the sensitivity and detection limit of the bare carbon-based electrodes, the modification of their surfaces can be performed with nanomaterials, such as for example graphene [18][19][20][21][22], carbon nanotubes [23][24][25][26], metal nanoparticles [21,27,28], etc. Nanomaterials exhibit extraordinary electrical and physical properties, and they are very often used for the electrode surface modifications.…”

Electrochemical Investigations of Biomolecules Using Carbon Nanotube and Graphene Based Modified Electrodes

“…The enhanced ALM response was attributed to accelerated electron transfer capability and huge electroactive surface area [9]. There are several reports available wherein CNTs have been utilized to modify the electrode to explore electrochemistry of various interesting biomolecules and for the development of electroanalytical methods for their assay in pharmaceutical formulations and analyte fortified samples [11][12][13]. The electrocatalytic performance and sensitivity of the modified electrode was improved by the incorporation of metal/metal oxide (M/MOx) nanoparticles into CNTs matrix as M/MOx nanoparticles are known for their high conductivity, huge surface-to-volume ratio and catalytic properties [14][15][16].…”

An electrochemical sensing platform for trace recognition and detection of an anti-prostate cancer drug flutamide in biological samples

“…Over the past two decades, chemically modied carbon paste electrodes 34 (CMCPEs) have attracted broad interest in biological and pharmaceutical sensing development due to low background current, wide range of potential window, easy surface renewal, lower detection limit, and low cost. Due to these advantages CMCPEs have been employed for several purposes, such as voltammetric determination of the herbicide propham, 35 electroanalytical determination of 4-chloro-3methylphenol, 36 electrochemical analysis of D-penicillamine (D-PA), stripping measurements of hydrogen peroxide, electrocatalytic determination of ascorbic acid etc. [37][38][39] An electroactive mediator needs to be of low relative molar mass, reversible, fast reacting, regenerated at low potential, pH independent, stable in both oxidized and reduced forms, unreactive with oxygen and non-toxic.…”