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Determination of Zidovudine in Pharmaceuticals by Differential Pulse Voltammetry
Analytical Letters, 2010The zidovudine (AZT) has been extensively used in the treatment of HIV patients due to its antiretroviral activity. The quality control of this substance in drugs is of outstanding importance to public health because of its undesirable effects and short therapeutic interval.
Katia Christina Leandro +2 more
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Differential-pulse adsorptive stripping voltammetry of chlorhexidine
The Analyst, 1991Chlorhexidine gluconate was shown to adsorb onto a hanging mercury drop electrode and to be amenable to quantification by adsorptive stripping voltammetry. A sensitivity of 1 × 10–7 mol dm–3 was easily achieved by simply immersing the electrode in a stirred solution (pH 9.7 ammonia-ammonium acetate buffer) of the drug for a fixed time (60 s), at a ...
GRATTERI, PAOLA +5 more
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Determination of Melphalan Using Differential Pulse Voltammetry
Analytical Letters, 1985Abstract The anodic oxidation of melphalan was studied on a glassy carbon disk electrode, either stationary or rotated, using a d.c. and a differential pulse potential program. The conditions have been found for a differential pulse voltammetric determination of the substance, with a detection limit of 1 × 10−6 mol 1 ...
Jiří Barek +2 more
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Analytical Chemistry, 1996
A differential pulse anodic stripping voltammetric (DPASV) method was used to differentiate between the cadmium species Cd(2+) and MeCd(+) (Me = methyl) in aquatic systems. These two species show peaks in the DPASV voltammogram which differ by 112 mV.
R, Pongratz, K G, Heumann
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A differential pulse anodic stripping voltammetric (DPASV) method was used to differentiate between the cadmium species Cd(2+) and MeCd(+) (Me = methyl) in aquatic systems. These two species show peaks in the DPASV voltammogram which differ by 112 mV.
R, Pongratz, K G, Heumann
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Determination of isopropylmethylphenols in black seed oil by differential pulse voltammetry
Phytochemical Analysis, 2004AbstractA differential pulse voltammetric method is presented for the determination of isopropylmethylphenols (carvacrol and/or thymol) in phytotherapeutic black seed oils. The voltammetric behaviours of these phenols were examined in various buffer systems over the pH range 3.5–10.0.
Astrid, Michelitsch +4 more
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Determination of indole in shrimps by differential-pulse voltammetry in an emulsified medium
The Analyst, 1990A method has been developed to determine indole in shrimps by differential-pulse voltammetry at a Pt electrode in an emulsified medium, after extraction into hexane - ethyl acetate (49 + 1). The standard additions method was used in order to minimise the matrix effect.
J M, Pingarrón Carrazón +2 more
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Differential pulse adsorptive stripping voltammetry of osmium-modified peptides
Bioelectrochemistry, 2002Complexes of osmium tetroxide with nitrogen ligands were developed and used in our laboratory as probes of the DNA structure. Here, we show that the complex of osmium tetroxide with 2,2'-bipyridine (Os,bipy) can be used for modification and electrochemical detection of proteins at neutral pH.
Sabina, Billová +2 more
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Revisiting the nitrite reductase activity of hemoglobin with differential pulse voltammetry
Analytica Chimica Acta, 2020Nitric oxide (NO) is an omnipresent signalling molecule in all vertebrates. NO modulates blood flow and neural activity. Nitrite anion is one of the most important sources of NO. Nitrite is reduced to NO by various physiological mechanisms including reduction by hemoglobin in vascular system.
Hamid Fini, Kagan Kerman
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Simultaneous determination of three herbicides by differential pulse voltammetry and chemometrics
Journal of Environmental Science and Health, Part B, 2011A novel differential pulse voltammetry method (DPV) was researched and developed for the simultaneous determination of Pendimethalin, Dinoseb and sodium 5-nitroguaiacolate (5NG) with the aid of chemometrics. The voltammograms of these three compounds overlapped significantly, and to facilitate the simultaneous determination of the three analytes ...
Ni, Yongnian, Wang, Lin, Kokot, Serge
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Determination of lead in paint by differential-pulse anodic-stripping voltammetry
The Analyst, 1978A procedure for the determination of lead in paints by differential-pulse anodic-stripping voltammetry is presented. Only a few milligrams of sample are required for the analysis. Dry ashing with sodium carbonate as the flux has been found to be a simple and effective method for the destruction of the organic matrix. Samples of the dried paint of small
P C, Lai, K W, Fung
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