Principle and Example for Polarographic Analysis
نویسندگان
چکیده
منابع مشابه
Polarographic Methods of Analysis
The polarographic method invented by J. Heyrovsk over 40 years ago has been associated with many successful achievements in many branches of physical and analytical chemistry, particularly in electrochemistry. Following the construction of the polarograph (with the excellent properties of Kuera's dropping mercury electrode incorporated) by Heyrovsk and Shikata, recording the current—voltage cur...
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The electrochemical reduction behaviour of Permethrin has been carried out, by employing d.c. polarography, cyclic voltammetry (CV) and differential pulse polarography (DPP) in the supporting electrolytes of the pH ranging from 2.0 to 12.0. The nature of electrode process was studied, the number of electrons was evaluated and the reduction mechanism was proposed. Kinetic parameters such as tran...
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The aim of this note is to give a simple but instructive example of the forgetrestore principle, conceived by Giovanni Sambin as a discipline for a constructive development of mathematics and first appeared in print in the introduction of Sambin and Valentini 1997. The best way to explain such a philosophical position is to quote from that paper: “To build up an abstract concept from a row flow...
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The voltammetric behaviour of quetiapine (QTP) was studied using direct current (DCt), differential pulse (DPP) and alternating current (ACt) polarography. The drug manifests cathodic waves over the pH range of 6 – 11.8. The waves were characterized as being irreversible, diffusion-controlled with limited adsorption properties. At pH 8, the diffusion current-concentration relationship was recti...
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An extremely sensitive pulse polarographic method for the determination of zinc dimethyldithiocarbamate (an agricultural fungicide) and zinc di-n-pentyldithiocarbamate (a petroleum additive), has been developed based on the reaction of their dithiocarbamate moiety with copper(II) perchlorate in acetonitrile medium. Well defined diffusion-controlled peaks are observed at –140 mV and –130 mV (vs ...
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ژورنال
عنوان ژورنال: Journal of The Surface Finishing Society of Japan
سال: 2012
ISSN: 0915-1869,1884-3409
DOI: 10.4139/sfj.63.562