An Approach To Extract Rate Constants from Reaction−Diffusion Dynamics in a Microchannel

An Approach To Extract Rate Constants from Reaction−Diffusion Dynamics in a Microchannel

A theoretical model is proposed to extract rate constants of second-order chemical reactions down to the millisecond time scale from the observation of reaction−diffusion processes in a microchannel. We validate this theoretical approach by examining an appropriate model reaction. The measured rate...

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Veröffentlicht in:Analytical chemistry (Washington) 2005-06, Vol.77 (11), p.3417-3424
Hauptverfasser: Salmon, Jean-Baptiste, Dubrocq, Claire, Tabeling, Patrick, Charier, Sandrine, Alcor, Damien, Jullien, Ludovic, Ferrage, Fabien
Format: Artikel
Sprache:eng
Schlagworte:
Analytical chemistry
Chemical Sciences
Chemistry
Coumarins - chemistry
Diffusion
Exact sciences and technology
Fluorescence
General and physical chemistry
Kinetics
Magnetic Resonance Spectroscopy - methods
Microfluidics
Models, Chemical
or physical chemistry
Protons
Sensitivity and Specificity
Spectrophotometry, Ultraviolet
Theoretical and
Theory
Theory of reactions, general kinetics
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Validation studies
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Zusammenfassung:A theoretical model is proposed to extract rate constants of second-order chemical reactions down to the millisecond time scale from the observation of reaction−diffusion processes in a microchannel. We validate this theoretical approach by examining an appropriate model reaction. The measured rate constant is in excellent agreement with this obtained from nuclear magnetic resonance experiments.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac0500838