毛细管电泳法测定PTA中4-CBA和p-TOL含量不确定度评定  

Evaluation of uncertainty of a measurement of the capillary electrophoresis method for determine the content of 4-CBA and p-TOL in PTA

作　　者：薛月霞[1] 李德宏[2] 

机构地区：[1]江苏仪征化纤公司PTA生产中心,江苏仪征211900 [2]江苏仪征化纤公司技术开发中心,江苏仪征211900

出　　处：《聚酯工业》2008年第1期13-15,共3页Polyester Industry

摘　　要：对用毛细管电泳法测定PTA中4-CBA和p-TOL的不确定度进行了评定,结果说明,增加样品重复测定次数,增加标准曲线校正点,可以达到减少不确定度的目的。The uncertainty of a measurement of the capillary electrophoresis method for determine the content of 4- CBA and p-TOL in PTA was evaluated. The results showed that the uncertainty of a measurement for this method can be reduced by increasing the calibration point of standard curve and the sample repeated measurement times.

关 键 词：PTA 4-羧基苯甲醛 对甲基苯甲酸 毛细管电泳法 

分 类 号：O658.9[理学—分析化学]