Methods for the analysis of transient absorbance data (Technical Report)
| Autor: | A. D. Zuberbuhler, J. Wirz, R. Bonneau |
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| Rok vydání: | 1997 |
| Předmět: | |
| Zdroj: | Pure and Applied Chemistry. 69:979-992 |
| ISSN: | 1365-3075 0033-4545 |
| DOI: | 10.1351/pac199769050979 |
| Popis: | Procedures for the generation and collection of transient UV-visible absorbance data are briefly reviewed. Problems associated with signal generation (scattered light, inhomogeneous distribution of transients, instability of pulsed light sources), signal detection (averaging, filtering), and signal analysis in kinetic and spectrographic flash photolysis are addressed. Methodology for the fitting of model functions to absorbance data that depend on up to three variables (time, wavelength and, e.g., temperature) is discussed. I. INTRODUCTION Since its invention in 1949 [l], flash photolysis has remained one of the most important tools to detect short-lived intermediates and, thus, to elucidate elementary reaction steps. The time resolution has increased dramatically from milliseconds to femtoseconds. Most researchers construct their own instruments from commercial components and design their own software for instrument control, data collection, and data analysis. The purpose of this document is to increase the awareness about available methods, their pitfalls |
| Databáze: | OpenAIRE |
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