Accuracy and precision of heat capacity measurements using a heat flux differential scanning calorimeter

被引：15

作者：

deBarros, TMVR ^{[1
]}

Santos, RC ^{[1
]}

Fernandes, AC ^{[1
]}

daPiedade, MEM ^{[1
]}

机构：

[1] Univ Tecn Lisboa, CTR QUIM ESTRUTURAL, INST SUPER TECN, P-1096 LISBON, PORTUGAL

来源：

THERMOCHIMICA ACTA | 1995年 / 269卷

关键词：

DSC; heat capacity accuracy; heat capacity precision; heat flux calorimetry;

D O I：

10.1016/0040-6031(95)02706-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The accuracy and precision of a Setaram DSC 121 for the measurement of heat capacities of solids in the continuous mode was tested using sapphire and benzoic acid. The influence of the heating rate, mass of sample, and position of the crucible in the measuring tube on the obtained results is discussed. In the temperature range studied (320-440 K for sapphire and 320-370 K for benzoic acid) the accuracy and precision of the determination, based on the average results of three independent experiments, are better than 1% provided that adequate experimental conditions (large sample masses and low heating rates) and data handling procedures are used.

引用

页码：51 / 60

页数：10

共 4 条

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[4]

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