An approach to extract rate constants from reaction--diffusion dynamics in a microchannel.

Jean-Baptiste Salmon (1) , Claire Dubrocq (1) , Patrick Tabelling (1) , Sandrine S. Charrier (2) , Damien D. Alcor (2) , Ludovic Jullien (2) , Fabien F. Ferrage

1 MMN - Laboratoire Microfluidique, MEMS, Nanostructures
2 PASTEUR - Processus d'Activation Sélective par Transfert d'Energie Uni-électronique ou Radiatif (UMR 8640)

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.

Domaines: Chimie théorique et/ou physique

Jean-Baptiste Salmon, Claire Dubrocq, Patrick Tabelling, Sandrine S. Charrier, Damien D. Alcor, et al.. An approach to extract rate constants from reaction--diffusion dynamics in a microchannel.. Analytical Chemistry, 2005, 77 (11), pp.3417 -3424. ⟨10.1021/ac0500838⟩. ⟨hal-00177296⟩