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Journal of thermal analysis

, Volume 18, Issue 2, pp 347–352 | Cite as

A statistical comparison of non-isothermal methods of kinetic investigation

  • I. V. Arkhangel'skii
  • L. N. Komissarova
  • N. A. Chernova
Article

Abstract

A statistical analysis of some non-isothermal kinetic techniques is given. Comparison of the kinetic parameter values obtained by different techniques has shown them to be statistically non-equivalent. Hypotheses of significance or non-significance of discrepancies in the kinetic parameter values should therefore be tested using two-dimensional normal distributions. Comparisons of the results obtained by various techniques using activation energy values only lead to erroneous conclusions.

Keywords

Polymer Physical Chemistry Activation Energy Normal Distribution Inorganic Chemistry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Zusammenfassung

Es wird eine statistische Analyse einiger nicht-isothermer kinetischer Techniken gegeben. Der Vergleich der durch verschiedene Methoden erhaltenen Werte der kinetischen Parameter zeigte, dass diese statistisch nicht äquivalent sind. Die Hypothesen der Signifikanz oder Nichtsignifikanz der Diskrepanzen der Werte der kinetischen Parameter sollten deshalb eher unter Anwendung zweidimensionaler Normalverteilungen als durch Vergleich der für einen gegebenen Parameter erhaltenen Werte geprüft werden.

Резюме

Дан статистический а нализ некоторых мето дов неизотермической ки нетики. Сравнение величин ки нетических параметр ов, полученных различны ми методами, показало, что эти методы дают не эквивалентные резул ьтаты. Гипотеза о значимост и или незначимости различий в наборах ки нетических параметров должна пр оверяться с использо ванием двумерного нормальн ого расирееделения. Сравнение отдельныж кинетических параметров между соб ой приводим ис ошибоч ным выводам.

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Copyright information

© Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest 1980

Authors and Affiliations

  • I. V. Arkhangel'skii
    • 1
  • L. N. Komissarova
    • 1
  • N. A. Chernova
    • 1
  1. 1.Department of Inorganic ChemistryMoscow State UniversityMoscowUSSR

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