Coulometry has been established as an important and reliable method for the determination of acidic compounds. The analytical method and simple apparatus described here arc applied to the precise and accurate determination of sulfur dioxide in nitrogen, specifically in compressed gas cylinders at nominal concentrations of 50 and 100 µmol/mol (ppm). This method is constant current coulometry whe...

An automated device for voltammetric measurements at a prescribed set of constant temperatures was put together in our institute. It allows one to take steady-state current-potential curves in the potentiostatic or galvanostatic mode, to do cyclic voltammetry or coulometry at constant potential or to measure the potential-time dependence at a constant current. A special holder for the solid ele...

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...

The Journal of Physical Chemistry is published by the American Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Secondary Reactions in Controlled Potential Coulometry. IV. Reversal Coulometry and Following Chemical Reactions Allen J. Bard, and Shankar V. Tatwawadi J. Phys. Chem., 1964, 68 (9), 2676-2682• DOI: 10.1021/j100791a050 • Publication Date (Web): 01 May 2002 Downloaded...

Controlled potential coulometry is a powerful tool in electroanalysis due to its ability to directly derive the quantity or electron stoichiometry of a substance without use of a calibration curve [1]. The technique has also been employed for mechanistic considerations; however, the general long experimental times (minutes to hours) are not conducive to such studies because of possible follow-u...

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 mol...