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Optimal methods for estimating kinetic isotope effects from different forms of the Rayleigh distillation equation |
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| Authors: | KM Scott X Lu JS Liu |
| Institution: | 1 Department of Organismic and Evolutionary Biology, Harvard University, 16 Divinity Avenue, Cambridge, MA 02138, USA 2 Department of Statistics, Harvard University, 1 Oxford Street, Cambridge, MA 02138, USA |
| Abstract: | The interpretation of stable isotope values hinges on precise, accurate estimates of kinetic isotope effects (α), which are equal to 1k/2k, where 1k and 2k are the reaction rate constants for the two isotopes. Kinetic isotope effects are commonly determined by monitoring the reactant concentration (C) and isotope ratio (R) relative to their initial values (C1 and R1, respectively). Values of α are estimated from the C and R values by using the Rayleigh distillation equation (RDE). (A) |
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