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差示扫描量热法确定L-脯氨酸的热动力学参数
Determination of Thermal Kinetic Parameters of L-Proline by Differential Scanning Calorimetry
【摘要】 利用差动热分析仪测得L 脯氨酸的差示扫描量热分析(DSC)曲线,采用普适积分法和微分方程法通过逻辑选择确定了L 脯氨酸相变和热解过程的最可几机理函数,并计算出相应的指前因子和活化能.
【Abstract】 The DSC curves of L-proline were determined by CDR-4P differential scanning calorimeter. According to the thermal analysis principles, the most probable mechanism functions were separately obtained by the universal integral method and the differential equation method for the phase transformation and thermolytic decomposition process. At the same time, the pre-exponential factors and the activation energies were also separately determined.
【关键词】 L-脯氨酸;
差示扫描量热分析;
最可几机理函数;
热动力学参数;
【Key words】 L-proline; DSC; most probable mechanism function; thermal kinetic parameters;
【Key words】 L-proline; DSC; most probable mechanism function; thermal kinetic parameters;
【基金】 国家自然科学基金(20075016);山东省自然科学基金(Y2000B03);曲阜师范大学校级项目资助.
- 【文献出处】 化学研究 ,Chemical Researches , 编辑部邮箱 ,2003年04期
- 【分类号】O642;O643.1
- 【被引频次】4
- 【下载频次】172