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A Practical Procedure for Determining Rate Constants in Consecutive First-Order Systems

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Mary Jo Kahley and Michael Novak

Miami University, Oxford, OH 45056

J. Chem. Educ., 1996, 73 (4), p 359

DOI: 10.1021/ed073p359

Publication Date (Web): April 1, 1996

Section:

History, Education, and Documentation

Abstract

A procedure, with accompanying program for the least-squares fitting of kinetic data to the equation for consecutive first-order processes is described. The program has been tested in experimental systems with up to four rate constants. Required input is the value of a physical property, such as absorbance, as a function of time and initial estimates of rate constants and pre-exponential factors for the rate equation. Output includes the least squares estimates of these parameters and statistical data concerning error limits for these parameters and the goodness of the fit. Procedures for choosing data points and making initial estimates are described. Possible problems and procedures for avoiding or surmounting them are also considered.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Physical Chemistry

Keywords (Pedagogy):

Computer-Based Learning

Keywords (Subject):

Kinetics

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This article has been cited by 1 ACS Journal articles (1 most recent appear below).

Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry for Locating Abasic Sites and Determining the Rates of Enzymatic Hydrolysis of Model Oligodeoxynucleotides
Li-Kang Zhang, Don Rempel, and Michael L. Gross
Analytical Chemistry2001 73 (14), 3263-3273
- Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry for Locating Abasic Sites and Determining the Rates of Enzymatic Hydrolysis of Model Oligodeoxynucleotides
  Li-Kang Zhang, Don Rempel, and Michael L. Gross
  Analytical Chemistry2001 73 (14), 3263-3273
  A method using a combination of exonuclease enzymatic digestion and matrix-assisted laser desorption/ionization (MALDI) mass spectrometry was developed to locate model abasic sites in a series of model 21-base oligodeoxynucleotides in which a nucleobase ...
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