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Voltammetric determination of fenbendazole in veterinarian formulations
(Elsevier B.V., 2002-09-05)
A versatile voltammetric method for quantitative determination of fenbendazole (FBZ) in commercial tablets has been proposed, where direct dissolution of tablets is carried out in 0.1 mol l(-1) tetrabutylamoniun tetrafluorborate ...
Determination of the relative contribution of phenolic antioxidants in orange juice by voltammetric methods
(Elsevier B.V., 2004-10-01)
The electrochemical oxidation of caffeic, chlorogenic, sinapic, ferulic and p-coumaric acids was investigated by cyclic voltammetry on acetate buffer pH 5.6 on glassy carbon electrode and modified glassy carbon electrode. ...
Voltammetric sensing of the fuel dye marker Solvent Blue 14 by screen-printed electrodes
(Elsevier B.V. Sa, 2009-04-24)
A voltammetric method was developed to detect Solvent Blue 14 (SB-14) dye marker in fuel ethanol and kerosene samples. The device is based on a screen-printed carbon electrode (SPCE) operating in a Brition-Robinson buffer ...
Voltammetric sensor for amoxicillin determination in human urine using polyglutamic acid/glutaraldehyde film
(Elsevier B.V. Sa, 2008-08-12)
A voltammetric sensor for determination of amoxicillin (AMX) was developed based on a glutaraldehyde cross-linked polyglutamic acid modified glassy carbon electrode. The proposed method is based on pre-concentration of AMX ...
Voltammetric determination of isoprenaline in pharmaceutical preparations using a copper(II) hexacyanoferrate(III) modified carbon paste electrode
(Elsevier B.V., 2004-09-01)
The electroanalytical determination of isoprenaline in pharmaceutical preparations of a homemade carbon paste electrode modified with copper(II) hexacyanoferrate(III) (CuHCF) was studied by cyclic voltammetry. Several ...
Application of voltammetric technique to the analysis of indanthrene dye in alkaline solution
(Elsevier B.V., 2006-01-01)
The Indanthrene Olive Green B (C.I. Vat Green 3; C.I. 69500), VG3 dye, a vat dye bearing an anthraquinonoid group and a ketonic group, can be detected by differential pulse voltammetry in alkaline solution using glassy ...
Voltammetric Determination of Phosphate in Brazilian Biodiesel Using Two Different Electrodes
(Wiley-Blackwell, 2011-10-01)
The presence of contaminants, such as phosphate, in biodiesel, has several drawbacks for instance: current engines perform poorly, fuel tanks deteriorate, catalytic conversion is damaged, and particles emission is increased. ...
Caffeine Determination at a Carbon Fiber Ultramicroelectrodes by Fast-Scan Cyclic Voltammetry
(Soc Brasileira Quimica, 2012-04-01)
Caffeine determination using a fast-scan voltammetric procedure at a carbon fiber ultramicroelectrode (CF-UME) is described. The CF-UME was submitted to electrochemical pretreatment. Parameters such as number of acquisition ...
Voltammetric assay of albendazole in pharmaceutical dosage forms
(Marcel Dekker Inc, 2001-01-01)
A simple, rapid inexpensive voltammetric method have been developed for the quantitative determination of albendazole (ABZ) as the pure assay, by direct dissolution of commercial tablets in HCl solutions. Studies with ...
Voltammetric determination of L-dopa using an electrode modified with trinuclear ruthenium ammine complex (Ru-red) supported on Y-type zeolite
(Elsevier B.V., 2004-07-08)
The L-dopa is the immediate precursor of the neurotransmitter dopamine. Unlike dopamine, L-dopa easily enters the central nervous system and is used in the treatment of Parkinson's disease. A sensitive and selective method ...