Estimating realistic confidence intervals for the activation energy determined from thermoanalytical measurements

http://dx.doi.org/10.1021/ac000210u
Update Item Information
Publication Type abstract
School or College College of Science
Department Chemistry
Program C-SAFE, Center for the Simulation of Accidental Fires and Explosions
Creator Wight, Charles Albert
Other Author Vyazovkin, Sergey
Title Estimating realistic confidence intervals for the activation energy determined from thermoanalytical measurements
Date 2000
Description A statistical procedure is proposed for estimating realistic confidence intervals for the activation energy determined by using an advanced isoconversional method. Nine sets of five thermogravimetric measurements have been produced for the process of gassification of ammonium nitrate at five different heating rates. Independent estimates of the confidence intervals for the activation energy have been obtained from these data sets. Agreement with these independent estimates demonstrates that the proposed statistical procedure is capable of adequately estimating the actual uncertainty in the activation energy determined from a small number of measurements. The resulting averaged relative errors in the activation energy were found to be 26, 21, and 17% for three, four, and five heating rate estimates, respectively.
Type Text
Publisher American Chemical Society
Subject Thermoanalysis; Activation energy; Isoconversional method
Subject LCSH Confidence intervals; Thermogravimetry
Language eng
Bibliographic Citation Vyazovkin, S., & Wight, C. A. (2000). Estimating realistic confidence intervals for the activation energy determined from thermoanalytical measurements. Analytical Chemistry, 72(14), 3171-5.
Rights Management (c)American Chemical Society http://dx.doi.org/10.1021/ac000210u
Format Medium application/pdf
Identifier ir-main,7075
ARK ark:/87278/s61z4p42
Setname ir_uspace
ID 707622
Reference URL https://collections.lib.utah.edu/ark:/87278/s61z4p42
Back to Search Results