Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Joseph E. Vitt"'
Publikováno v:
Journal of Electroanalytical Chemistry. 492:70-73
The ring electrode of a Au–Au rotating ring-disk electrode was used to monitor the concentrations of I − and I 2 during oscillations in current that occur during I − oxidation at the disk electrode. With the ring electrode poised at a potential
Autor:
Joseph E. Vitt, Ling Ma
Publikováno v:
Journal of The Electrochemical Society. 146:4152-4157
Oscillations in the electrode current were observed during the potentiostatic oxidation of iodide at a gold rotating disk electrode. In a 0.10 M KI solution, the oscillations were periodic, with a peak-to-peak amplitude equal to 70% of the peak curre
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 93:221-227
The spatial distribution of poly(phenylene oxide) on platinum electrodes was studied using the technique of electrogenerated chemiluminescence (ECL) imaging. The polymer was deposited on electrodes through the electrooxidation of phenol in aqueous so
Publikováno v:
Journal of The Electrochemical Society. 141:1014-1020
A synthesis is described for Ru microelectrode arrays within a conductive Ti[sub 4]O[sub 7] ceramic matrix. Data obtained by X-ray diffractometry and scanning electron microscopy are consistent with the existence of heterogeneous mixtures of Ru parti
Publikováno v:
Journal of The Electrochemical Society. 139:377-380
This paper reports that oxidations of dimethyl sulfoxide, toluene, and p-xylene at pure PbO{sub 2}-film electrodes were determined to be under extreme kinetic control with values of the apparent heterogeneous rate constant (k{sub app} {much lt} 1 {ti
Publikováno v:
Journal of The Electrochemical Society. 138:1637-1643
This paper reports on the oxidation of luminol and its concomitant electrogenerated chemiluminescence (ECL) which were studied at several electrode materials by voltammetry and chronoamperometry. The ECL intensity (I{sub ECL}) was inversely related t
Publikováno v:
ChemInform. 32
The ring electrode of a Au–Au rotating ring-disk electrode was used to monitor the concentrations of I − and I 2 during oscillations in current that occur during I − oxidation at the disk electrode. With the ring electrode poised at a potential
Autor:
Joseph E. Vitt
Publikováno v:
Journal of Chemical Education. 85:1660
An experiment is described where students troubleshoot a published procedure for the analysis of ethanol. UV�vis spectroscopy is used to measure the change in absorbance upon reaction of dichromate with ethanol. The experiment requires the students
Autor:
Joseph E. Vitt
Publikováno v:
Analytical Chemistry. 68:320A-321A
Autor:
Joseph E. Vitt, Royce C. Engstrom
Publikováno v:
Journal of Chemical Education. 76:99
Despite the importance of sampling in analytical chemistry, it is frequently overlooked in the introductory analytical curriculum. We have developed a laboratory experiment suitable for the introductory analytical course that introduces the principle