Temperature calibration method and specific methods of freezing point in differential scanning calorimetry

摘要

PROBLEM TO BE SOLVED: To provide an analyzing method of a DSC curve and output temperature curve for determining the accurate freezing point from among differential scanning calorimetry result, even for a sample showing supercooling, and a temperature calibration method in cooling a differential scanning calorimetry device.;SOLUTION: In this method, it is found that the sample can specify a range showing the state of a constant state at the freezing temperature, by latent heat from the differential scanning calorimetry result in the cooling process, and the freezing point of the sample is determined, based on the data in this range. For example, the output temperature at the intersection of the extrapolation tangent from the DSC curve and output temperature curve and the baseline or extension line of the range of liquid state, including the supercooling state, is read, and the DSC curve and output temperature curve using the temperature at this intersection as the freezing point of the sample is analyzed.;COPYRIGHT: (C)2007,JPO&INPIT