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用瞬时法测定了２０℃和４０℃两个温度点下５个丙酮—三氯甲烷二元混合体系的导热系数，并且用５个已知导热系数的标准物质标定了装置，平均相对误差小于１％，实现了用计算机自动完成数据采集和处理，建立了导热系数与浓度的关联式，该法快速，便捷，测量时间为１ｓ，是快速分析混合物组成的有效方法
The thermal conductivities of five acetone-chloroform mixed binary systems at 20 ℃ and 40 ℃ were measured by the instantaneous method, and the devices were calibrated with five standard materials with known thermal conductivity. The average relative error was less than 1 %, The realization of a computer automatically complete the data acquisition and processing, the establishment of the correlation coefficient of thermal conductivity and concentration, the method is fast and convenient, the measurement time is 1s, is an effective method for rapid analysis of the composition of the mixture