Application of factor analysis for resolving thermogravimetric–mass spectrometric analysis spectra

Autor:	K. Mikedi, Nikolaos Tzamtzis, Athina Pappa, M. Statheropoulos
Rok vydání:	2002
Předmět:	Thermogravimetric analysis Chemistry Thermal decomposition Kraton Analytical chemistry Mass spectrometry Biochemistry Decomposition Analytical Chemistry Chemometrics Principal component analysis Mass spectrum Environmental Chemistry Spectroscopy
Zdroj:	Analytica Chimica Acta. 461:215-227
ISSN:	0003-2670
DOI:	10.1016/s0003-2670(02)00235-0
Popis:	Factor Analysis was used for extracting information out of the mixture mass spectra recorded in a thermogravimetric–mass spectrometric analysis. Principal component analysis (PCA) and a special diagram, the contour variance diagram (ContVarDia), were used for performing the factor analysis. The method was applied for studying the thermal decomposition of Kraton 1107 copolymer. Pyrolysis–gas chromatography–mass spectrometry (Py–GC–MS) was used for identification of the pyrolysis products of Kraton 1107. The application of factor analysis resulted in the determination of the main thermal decomposition steps and the prediction of the mass spectrum corresponding to each step. Those mass spectra were either pure spectra corresponding to main evolved gases or average spectra corresponding to multiple gases evolved in one decomposition step. The advantages and the limitations of the chemometric approach were discussed. © 2002 Elsevier Science B.V. All rights reserved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1db700a028f6807e92245c7aa061a039 https://doi.org/10.1016/s0003-2670(02)00235-0 Zobrazit plný text záznamu Full Text from ScienceDirect