Results 131 to 140 of about 215,852 (161)
Some of the next articles are maybe not open access.
The study of bimolecular reactions under non-pseudo-first order conditions
Biophysical Chemistry, 2005In this work a new equation which describes the time evolution of bimolecular reactions is derived and tested by experiment. The equation is general and the results show that second-order reactions of any simple type may be accurately described by a quotient of exponential functions. The model and reagent concentration dependent observed rate constants
openaire +3 more sources
Unified treatment of the pseudo-first order catalytic process for all stepped-potential methods
Journal of Electroanalytical Chemistry, 1998A general solution for any stepped-potential method in the case of the pseudo-first order catalytic process is presented. This solution is valid for a reversible redox reaction at a plane electrode whatever the magnitude of the forward and the backward rate constant of the parallel homogeneous chemical reaction.
Fatouros, Nicolas, Krulic, Denise
openaire +2 more sources
Probenecid Disposition by Parallel Michaelis-Menten and Dose-Dependent Pseudo-First-Order Processes
Journal of Pharmaceutical Sciences, 1986Re-evaluation of published data on the urinary excretion of probenecid [4-(dipropylamino)sulfonylbenzoic acid, 1] and its metabolites as a function of orally administered dose has revealed that the elimination process is comprised of five parallel pathways.
J C, Ho, W D, Conway, S, Melethil
openaire +2 more sources
Biophysical Chemistry, 2004
The linearization of the Michaelis-Menten reaction by pseudo-first-order kinetics is revised. A phase-plane analysis allows the derivation of a new condition for its validity that is directly linked to the reaction efficiency, and contrary to widely established knowledge, is independent of the initial enzyme concentration.
S, Schnell, C, Mendoza
openaire +2 more sources
The linearization of the Michaelis-Menten reaction by pseudo-first-order kinetics is revised. A phase-plane analysis allows the derivation of a new condition for its validity that is directly linked to the reaction efficiency, and contrary to widely established knowledge, is independent of the initial enzyme concentration.
S, Schnell, C, Mendoza
openaire +2 more sources
Addition of iodine to alkenes: A pseudo-first-, second-, or third-order kinetics experiment
Journal of Chemical Education, 1987A simple, inexpensive, class-tested experiment for determining the kinetics of iodine addition to various alkenes in several solvents.
Kurt W. Field +3 more
openaire +1 more source
Fitting isoperibolic calorimeter data for reactions with pseudo-first order chemical kinetics
Journal of Thermal Analysis and Calorimetry, 2005The non-linear least squares fitting of the chemical heat flow and the reactor temperature are compared for reactions with pseudo-first order chemical kinetics carried out in an isoperibolic calorimeter operating quasi-isothermally. Both methods give very similar results for the reaction rate constant and enthalpy of reaction but fitting the reactor ...
AMPELLI, Claudio +3 more
openaire +2 more sources
Square wave voltammetry for a pseudo-first-order catalytic process at spherical electrodes
Journal of Electroanalytical Chemistry, 2000Abstract A theoretical equation corresponding to square wave voltammetry for a pseudo-first-order catalytic mechanism at spherical electrodes of any radius is presented. The effects of the electrode sphericity are analysed. Methods for calculating equilibrium and rate constants of the chemical reaction are proposed and applied to the system Fe(III ...
Angela Molina +2 more
openaire +1 more source
A pseudo first order rate model for the adsorption of an organic adsorbate in aqueous solution
Journal of Chemical Technology & Biotechnology, 1999Five low rank, coal-based adsorbents, i.e. coal, grus, two chars, and an activated carbon were used to adsorb a low molecular weight organic compound from aqueous solution. The rates of adsorption were found to conform to pseudo first order kinetics with good correlation (r2 greater than 0.996).
Pam H Y Li +2 more
openaire +1 more source
Pseudo‐first‐order kinetic studies of the sorption of acid dyes onto chitosan
Journal of Applied Polymer Science, 2004AbstractThe adsorption of five acid dyes onto chitosan, derived through the deacetylation of crab‐shell chitin, from aqueous solutions was studied. The equilibrium isotherms were measured and analyzed with the Langmuir, Freundlich, and Redlich–Peterson equations; the results correlated well with the Langmuir equation.
Wong, YC +3 more
openaire +2 more sources
Kinetics of Cs adsorption/desorption on granite by a pseudo first order reaction model
Journal of Radioanalytical and Nuclear Chemistry, 2007In this present work, the kinetic reaction constants including the forward (kf, Cs adsorption onto granite) and backward (kb, Cs desorption from granite) rate constants of Cs on granite were determined by fitting the experimental data from both adsorption and desorption experiments with a pseudo first-order reaction model. In the case of Cs adsorption,
Shih-Chin Tsai +5 more
openaire +1 more source