๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Investigations on adsorption potentiometry: Part VI. Derivative adsorption chronopotentiometry of furazolidone

โœ Scribed by Wenrui Jin; Yanhong Zheng; Xia Qu

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
332 KB
Volume
262
Category
Article
ISSN
0003-2670

No coin nor oath required. For personal study only.

โœฆ Synopsis

An electroanalyhcal method for the determmatlon of trace-amounts of furazobdone, based on derlvattve chronopotenttometry of furazohdone accumulated adsorptively on the surface of a hangmg mercury drop electrode, has been developed The dependences of the peak current of reduction of adsorbed furazohdone OR the preconcentratmn trme and the preconcentratlon potential are discussed The electrode reactlon was found to be totally lrreverslble Opttmum expenmental cnndltlons Include 9 0 x 10m3 mol I-' KOH and a prewncentratlon potential of -030 V (vs SCE) Under these condltlons, the detection lnmt and the lmear range are 1 OX lOA" and 3 4 x 10e9-1 4 x 10e6 md I-', respectively, for an accumulation time of 60 s The method was applied to samples of furazuhdone tablets

๐Ÿ“œ SIMILAR VOLUMES

Investigations on adsorption potentiomet
Investigations on adsorption potentiometry. Part X: Derivative adsorption chronopotentiometry of chromium(III)
โœ Wenrui Jin; Xianglan Jia; Jianmin Lu ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 524 KB

The study concerns a very sensitive electroanalytical method, based on derivative chronopotentiometry of the chromium (111) complex with 2-(5'-bromo-2'-pyridylazo)-5-diethyl aminophenol (5-Br-PADAP) accumulated adsorptively on the surface of a hanging mercury drop electrode. The detection limit is 6

Investigations on adsorption potentiomet
Investigations on adsorption potentiometry: Part IX. Determination of ultratrace boron by derivative adsorption chronopotentiometry
โœ Wenrui Jin; Li Xiao; Yan Wu ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 442 KB

A derivative chronopotentiometric method for the determination of ultratrace boron, based on adsorptive accumulation of a boron complex on the surface of a hanging mercury drop electrode, was developed. In order to form the boron(liD complex with 4-[(4-diethylamino-2-hydroxyphenyl)azo]-5-hydroxynaph

Investigations on adsorption stripping p
Investigations on adsorption stripping potentiometry: Part III. Theory of derivative adsorption potentiometry for a reversible reaction
โœ Wenrui Jin; Junying Wang ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 492 KB

Equations of the derivative of time with respect to potential and of its peak potential and the peak half-width are derived for a reversible process in adsorption potentiometry in both stirred and unstirred solutions, when both oxidized and reduced forms #are strongly adsorbed and the Langmuir isoth