Thermal transformations of biologically active derivatives of cinnamic acid by TPD MS investigation

被引：22

作者：

Kulik, T. V. ^{[1
]}

Barvinchenko, V. N. ^{[1
]}

Palyanytsya, B. B. ^{[1
]}

Lipkovska, N. A. ^{[1
]}

Dudik, O. O. ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Chuiko Inst Surface Chem, UA-03164 Kiev, Ukraine

来源：

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS | 2011年 / 90卷 / 02期

关键词：

Cinnamic acid; Coumaric acid; Caffeic acid; Ferulic acid; TPD MS; TEMPERATURE-PROGRAMMED-DESORPTION; FERULIC ACID; MASS-SPECTROMETRY; ADSORPTION; ANTIOXIDANTS; PEROXIDASE; PARAMETERS; SILICA; MODEL;

D O I：

10.1016/j.jaap.2010.12.012

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Pyrolysis of biologically active cinnamic acid derivatives: cinnamic, coumaric, ferulic and caffeic acids was studied by the method of thermal programmed desorption mass spectrometry. It was found that pyrolysis of coumaric and caffeic acid proceeds as a thermal decarboxylation reaction of the first order. Kinetic parameters of the reaction of decarboxylation including its order, the activation energy and pre-exponential factor were calculated. Under conditions of TPD MS experiment cinnamic acid sublimates at temperatures above 200 degrees C. Thermal decomposition of ferulic acid proceeds in several stages. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：219 / 223

页数：5

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