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Application of a new method to the determination of rate constants: Examination of the effect of noise on the data
Author(s) -
Yamasaki Katsuyoshi,
Watanabe Akihiro,
Kakuda Teruaki,
Tokue Ikuo
Publication year - 1998
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/(sici)1097-4601(1998)30:1<47::aid-kin6>3.0.co;2-u
Subject(s) - chemistry , reaction rate constant , linearization , nonlinear regression , noise (video) , photodissociation , linear regression , relaxation (psychology) , reliability (semiconductor) , nonlinear system , mathematics , ambiguity , statistical physics , regression analysis , thermodynamics , analytical chemistry (journal) , kinetics , statistics , quantum mechanics , chromatography , photochemistry , physics , computer science , artificial intelligence , psychology , social psychology , power (physics) , programming language , image (mathematics)
A new linear regression method is applied to determine the rate constants from time‐dependent profiles. The method is effective for obtaining the rate constants of such consecutive processes as vibrational relaxation. The ambiguity of ordinary nonlinear analysis is eliminated by the linearization of regression equations. Because the new method also determines relative detectivity, the nascent vibrational distributions immediately following reactions or photolysis can be obtained simultaneously. In order to demonstrate the reliability of the new method under practical conditions, several examples of analysis of the data with noise are shown in detail. © 1998 John Wiley & Sons, Inc. Int J Chem Kinet: 30: 47–54, 1998.