Construction of a microcomputer controlled near normal incidence reflectance spectroelectrochemical system and its performance evaluation

Abstract

bration gave y = 1.21 and Ts = 3.7%.Although some space on the photoplate is required for recording the germanium exposures, it is compensated by the provision of suitable plate calibration data, irrespective of the composition of the sample. A possible disadvantage is that, using Ge2+, the y and T6 values obtained specify the calibration over a narrow region of the mass range. However, in practice, it is rarely possible to obtain adequate calibration data over the entire mass range using internal elements. The inconvenience of having to include separate germanium exposures on each plate is partly overcome by first recording, in turn, the exposures on each photoplate located in the plate storage chamber. When a sample is run, the plate has already recorded on it the required calibration data. No memory effects for Ge occur.Registry No. Ge2+,

Electrochemical Oxidation of Mn[sup 2+] on Boron-Doped Diamond Electrodes with Bi[sup 3+] Used as an Electron Transfer Mediator

“…The details of the setup have been described elsewhere. 25,26 Measurements of permanganate concentrations were made for current efficiency calculations using an S-2100 UV-vis Spectrophotometer from Scinco ͑Seoul, Korea͒. 1a͒.…”

Electrochemistry of Conductive Polymers 46. Polymer Films as Overcharge Inhibitors for Lithium-Ion Rechargeable Batteries

“…The cell was configured in a near normal incidence reflectance mode using a bifurcated quartz optical fiber. [16][17][18] The white-light beam was brought onto the electrode surface via one branch of the bifurcated optical fiber from the light source such that the beam would be near normal to the surface. Reflected light from the electrode surface (area = 0.30 cm 2 ) was then guided into a grating through another branch, which dispersed the white beam onto the CCD array detector.…”

Spectroelectrochemistry: In s itu UV ‐visible Spectroscopy

“…The cell was also thermostatted to permit operation down to −40 • C and, since no epoxy glue was used in the construction, the cell was useful for nonaqueous solvent electrochemistry. The Salbeck cell uses bifurcated optical fiber bundles as in a previous cell design [159]. A much more sophisticated and expensive design features stepper motor control of the electrode-window distance, Fig.…”