نتایج جستجو برای: differential pulse polarography

تعداد نتایج: 372164  

Journal: :Farmaco 2000
A A al-Majed F Belal A Abadi A M al-Obaid

The voltammetric behavior of ramipril was studied using cyclic voltammetry, direct current polarography (DCt), differential pulse polarography (DPP) and alternating current polarography (ACt). Ramipril developed well-defined cathodic waves in Britton-Robinson buffers over the pH range 6-12. The waves were characterized as being diffusion-controlled, irreversible and partially affected by adsorp...

2011
Shital Gandhi V. Mehta Sadhana Rajput

A simple, sensitive and highly selective electrochemical method was developed for the simultaneous determination of nitazoxanide and ofloxacin in aqueous media (Britton-Robinson buffer, pH-8.36) on a hanging mercury drop electrode (HMDE) using differential pulse polarography (DPP). Using DPP a separation of about 936 mV between the peak oxidation potentials of nitazoxanide and ofloxacin present...

A highly selective, sensitive, rapid and economical differential pulse polarographic method has been developed for the determination of trace amounts of antimony in various standard alloys and biological samples after adsorption of its 2-nitroso-1-naphthol-4-sulfonic acid - tetradecyldimethylbenzylammonium chloride on microcrystalline naphthalene in the pH range of 7.5-11.0. After filtratio...

2012
S. T. Trivedi P. A. Sathe

In the present study, a successful attempt has been made to develop a simple method for the simultaneous determination of manganese (II) and iron (III) in an industrial effluent using differential pulse polarography (DPP) technique. Quantification of manganese (II) and iron (III) was done in Triethanolamine and KOH as a supporting electrolyte. The polarogram recorded for the industrial effluent...

Journal: :Gazi university journal of science part a:engineering and innovation 2022

In this study, Arsenic, which is found in the structure of field medicines, was determined by ICP-OES. For arsenic analysis, Turkey elected four different commonly used pesticides. These pesticides were commercially named A, B, C, and D samples. samples solubilized using appropriate procedure microwave digestion method. determination, 188.980 nm wavelength measurements made. The determination k...

2013
Chennupalle Nageswara Reddy Puthalapattu ReddyPrasad NeelamYughandhar Sreedhar

The electrochemical reduction of zanosar was investigated systematically by direct current polarography, cyclic voltammetry, and differential pulse polarography (DPP). A simple DPP technique was proposed for the direct quantitative determination of anticancer drug zanosar in pharmaceutical formulation and spiked human urine samples for the first time. The reduction potential was -0.28 V versus ...

Journal: :Clinical chemistry 1982
H Lyons J R Adams W P Jordan

Catalytic waves obtained from the perchloric acid-soluble fraction of serum in the presence of hexaminecobalt trichloride appear to conform to a Langmuir adsorption isotherm. Wave heights for sera from patients with untreated urological cancers significantly exceed those from normal subjects. In general, treatment with diethylstilbestrol decreased the wave height. Effects of some other chemothe...

2006
G. E. Batley

The electroanalytical techniques of pulse polarography, stripping voltammetry and on-line electrochemical detection have been used for the identification and determination of trace concentrations of a wide variety of environmentally significant organic molecules, usually after the application of sample pretreatment procedures, certain separation techniques and, in some cases, derivatisation. Cl...

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