Voltammetric analysis of DL‐α‐tocopherol with a paste electrode

Abstract

BACKGROUND: A voltammetric study of vitamin E (DL-α-tocopherol) detection using square wave stripping and cyclic voltammetry is discussed in this paper. The working sensor was made by mixing carbon nanotube powder with DNA (double-stranded calf thymus DNA) and mineral oil. In this electrode, the anodic peak was obtained for −0.6 V in a 0.1 mol L −1 phosphate electrolyte solution.

Electrochemical determination of inorganic mercury and arsenic—A review

“…These high potential raise the number of interfering species that tends to lower the sensitivity. A catalyst or electrochemical mediator is usually introduced to resolve this high potential demand (Solé et al 2003 nicotine (Yang et al 2004), pesticides (Ciucu et al 2003), phenol (Liu et al 2005), Dpsicose (Miyanishi et al 2008), uric acid (Dutra et al 2005), clozapine (Farhadi et al 2007), guanine (Stempkowska et al 2007), pefloxacin (Radi 2005), tocopherol (Ly 2008), tetracycline (Angelikaki and Girousi 2008) etc. So-far, no work is reported for the determination of toxic metal ions in order to have the pollution analysis in water sources.…”

Recent Advances in Electroanalysis of Vitamins

“…The redox behavior of all the fat soluble vitamins was recently reviewed . The same author and others presented also more recent voltammetric studies in some solvents, such as dichloromethane and acetonitrile but also in water .…”

“…The relevant technical features and analytical performances of the published methods are reported in Table and , respectively. The most widely used electrode material is still glassy carbon, while just a paper deals with the use of a carbon paste electrode , one with platinum and one with DME .…”

Electrochemical detection of lipophilic antioxidants with high sensitivity at boron-doped diamond electrode

“…Modified electrodes, e.g. polypyrrole-modified platinum electrode [1], carbon nanotube/DNA paste electrode [9] and multi-walled carbon nanotube-modified graphite electrode [10], as well as platinum microelectode [11] were also useful for sensitive electrochemical detection of VE. The CoQ 10 /CoQ 10 H 2 redox system is based on the redox reaction of the quinone group, showing a well-defined redox peak pair at moderate potential region in cyclic voltammetry (CV).…”