نتایج جستجو برای: coulometry

تعداد نتایج: 183  

2002

Several new books and journals containing material of electroanalytical and electrochemical interest have appeared. The newest edition of “Standard Methods of Chemical Analysis” (329) includes chapters discussing the fundamentals of electrogravimetric and coulometric methods. Zozulya has written a brief monograph on coulometric analysis (341) and coulometric titrations in nonaqueous solvents ha...

2000
E. A. M. F. DAHMEN

Acid-base titrations can be carried out successfully in the solvent ??Icresol’. This is important for the determination of the acid or base content of some polymers for which ~cresol is a good solvent. The study of acid-base coulometry in nr-cresol was started because of the several advantages offered by coulometry: greater sensitivity, no problems with unstable titrants, and no need for standa...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2004
Mustafa Uçar Kamran Polat M Levent Aksu Hüseyin Unver

The electrochemical reduction of 1-([(4-halophenyl)imino]methyl)-2-naphthols on graphite electrodes was studied using cyclic voltammetry, chronoamperometry, constant-potential coulometry and preparative constant-potential electrolysis techniques. The data revealed that the reduction on graphite was irreversible and followed an EC mechanism. The diffusion coefficients and the number of electrons...

Journal: :Nova Biotechnologica et Chimica 2022

Flow through coulometry is used for analysis of wine samples the determination some heavy metals, sulphites, acidity and ethanol content. Low concentrations metals sulphite contents are determined by making use stripping chronopotentiometry. For measurement acid content thin-layer coulometric titration used.

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1997
afsaneh safavi mohammad bagher golivand

a systematic study on the electrochemical behavior of the s-derivatives of 2-amino cyclopentene-1-dithiocarboxylic acid (acda) has been carried out in aqueous ethanolic solutions by means of polarography, coulometry and voltammetry. all the compounds studied exhibited a well defined anodic wave corresponding to a diffusion controlled process. controlled potential coulometry gave n=1 per mole fo...

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