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

作　　者：孙玉希[1] 明永飞[1] 孟祥青[1] 程燕[1] 张洪林[1] 尤进茂[1] 

机构地区：[1]曲阜师范大学化学科学学院,山东曲阜273165

出　　处：《化学研究》2003年第4期49-52,共4页Chemical Research

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.

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.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：差示扫描量热法 L-脯氨酸 热动力学参数 最可几机理函数 氨基酸 

分 类 号：O629.71[理学—有机化学]