Physicochemical Measurements
The investigation of the molecular dynamics of stereoisomers and the study of the kinetics of reactions, in particular of catalyzed reactions, is of fundamental interest in chemistry, biochemistry, and medicine. In this chapter chromatographic techniques
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Physicochemical Measurements Oliver Trapp
Contents 24.1 24.2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dynamic Gas Chromatography (DGC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.2.1 Interconversion of Stereoisomers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.2.2 Methods and Models to Evaluate Interconversion Profiles in Dynamic Gas Chromatography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.2.2.1 The Theoretical Plate Model (TPM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.2.2.2 The Stochastic Model (SM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.2.2.3 Empirical Computer-Assisted Peak Deconvolution Methods . . . . . 24.2.2.4 Direct Calculation Methods: Approximation Function and Unified Equation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.3 Stopped-Flow Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.3.1 Stopped-Flow Chromatography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.3.2 Stopped-Flow Multidimensional Gas Chromatography . . . . . . . . . . . . . . . . . . . . . . 24.4 Applications: Gas Chromatography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.4.1 Dynamic Gas Chromatography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.4.2 Stopped-Flow Gas Chromatography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.4.3 Stopped-Flow Multidimensional Gas Chromatography . . . . . . . . . . . . . . . . . . . . . . 24.5 Integrated Catalysis and Gas Chromatographic Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Abstract The investigation of the molecular dynamics of stereoisomers and the study of the kinetics of reactions, in particular of catalyzed reactions, is of fundamental interest in chemistry, biochemistry, and medicine. In this chapter chromatographic techniques are discussed and presented as valuable tools to investigate interconversions and reactions taking place in a chromatographic separation column. Furthermore chromatographic data provide important information that can be used obtain physicochemical data, e.g. diffusion coefficients. The main focus of this
O. Trapp (*) Organisch-C
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