Thermal degradation of B-group vitamins: B1, B2 and B6Kinetic study

被引:0
作者
Adriana Fuliaş
Gabriela Vlase
Titus Vlase
Daniela Oneţiu
Nicolae Doca
Ionuţ Ledeţi
机构
[1] University of Medicine and Pharmacy “Victor Babeş”,Faculty of Pharmacy
[2] West University of Timisoara,Research Centre for Thermal Analysis in Environmental Problems
[3] SCIENT – Research Center for Instrumental Analysis (S.C. CROMATEC_PLUS S.R.L.),Faculty of Medicine
[4] University of Medicine and Pharmacy “Victor Babeş”,undefined
来源
Journal of Thermal Analysis and Calorimetry | 2014年 / 118卷
关键词
Thermal behaviour; Vitamin B; Kinetic analysis; Modified NPK method;
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中图分类号
学科分类号
摘要
The thermal behaviour of vitamins B1, B2 and B6 under non-isothermal conditions and dynamic air atmosphere was studied. According to our study, it was determined that the most stable compound is vitamin B2. A kinetic analysis of the thermodegradation process using four different data processing methods (Friedman, Flynn–Wall–Ozawa, Kissinger–Akahira–Sunose and modified NPK) was performed. The NPK was the only method that made it possible to evaluate the contribution to the reaction rate of the temperature and conversion, respectively. The results obtained from kinetic analysis were corroborated with the molecular architecture of the studied compounds.
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页码:1033 / 1038
页数:5
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