Thin-layer ultraviolet–visible reflectance spectroelectrochemistry with a spinning-grating monochromator

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Abstract
A thin-layer UV–visible spectroelectrochemistry system has been constructed using a commercially available spinning-grating monochromator. The spectroelectrochemical experiment is capable of scanning a wavelength range of 369 to 617 nm in 2.1 ms. The time delay between successive scans is 83 ms. The maximum peak-to-peak noise level in a 300-point spectrum collected during 2.1 ms with a spectral bandwidth of 2 nm is 0.03 absorbance units. The anodic spectroelectrochemistry of tetraphenylporphinatocopper(II), studied using the system, is presented. Keywords: thin-layer spectroelectrochemistry, rapid-scanning spectroscopy, spinning-grating monochromator, tetraphenylporphinatocopper(II).

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