• Peak Apex: The location of the max peak value is subject to multiple variables. Its value is influenced by the thermal kinetics of the sample and the DSC system. The sample mass, shape, density, and crucible contact as well as the heating rate and gas environment will all

Differential scanning calorimetry (DSC) is a thermoanalytical technique in which the difference in the amount of heat required to increase the temperature of a sample and reference is measured as a function of temperature. [1]

2023年9月26日 · We have developed an analytical method to quantitatively analyze differential scanning calorimetry (DSC) experimental data. This method provides accurate determination of thermal properties such as equilibrium melting temperature, latent heat, change of heat capacity which can be performed automatically without intervention of a DSC operator.

2024年7月23日 · Pure compounds give sharp endothermic peak in DSC, which is evident from the peaks observed for 98% and 100% mole phenacetin. Impure compounds will melt at a temperature lower than the corresponding pure compounds. Hence, melting point and nature of peak can be used to comment on the purity of any drug. Figure 4.4c. DSC of Phenacetin

本文选取高分子材料和锂离子材料等典型样品，利用DSC曲线反映的各种参数信息，揭示热过程和热处理对材料组成、相态变化和物化性质的重要影响。 1. DSC工作原理. 1955年，Boersma 改进了DTA设备，可使得扫描过程中样品的热流与温差呈稳定的线性关系，从而可以定量测量热流，标志着“热流型”DSC的诞生。 相比“功率补偿型”DSC，“热流型”DSC具有基线平稳、灵敏度高、使用和维护成本低等优势。 后续随着DSC技术的发展与进步，关于DSC热流测定的方法不断完 …

2023年1月24日 · Integrating a peak in DSC or DTA to determine its its area, A A, gives a signal that is proportional to ΔH Δ H. where the calibration constant, k k, is determined using an established reference material. Both DSC and DTA find applications in the study of polymers, liquid crystals, and pharmaceutical compounds.

2023年7月27日 · DSC curves exhibit two types of peaks: endothermic and exothermic. Endothermic peaks appear as upward peaks on the curve, indicating heat absorption by the sample. These peaks commonly occur during processes like …

The peak temperature is an important experimental value in DSC measurements. Systematic differences in this quantity can occur depending on the measurement conditions and the origin of the peak. The article explains the reasons for these differences and discusses the possibilities for correcting them.

The DSC curve shows a shift of the baseline around 77°C, indicating "glass transition". Also, an exothermic peak is observed around 130°C, indicating an exothermic reaction caused by crystallization. The endothermic peak observed at around 250°C refers to an endothermic reaction by "melting".

2013年1月1日 · In the early stages of the sorption, the DSC scan shows a single narrow peak typical of a pure lipid bilayer. At longer incubation times the peak broadens and shifts in temperature. Finally, on approaching the equilibrium distribution of the impurity between the lipid and the water, the peak narrows again, but with a different transition ...