Then we detected the physiochemical characteristics of the MS sample through scanning electron microscopy ( SEM ) , infrared spectrum ( IR )and differential thermal analysis ( DTA ) .
通过多种检测手段，如：扫描电镜（SEM）、红外光谱（IR）、示差热分析（DTA）等对制备样本的理化特性进行检测。
The essay discusses the accuracy of area method of thermal quantitative analysis and the effect of sample particle size with different materials on thermal analysis.
前言： 研究了差热定量分析面积法的准确性和不同物料样品粒度对定性差热分析的影响。
At present the development of thermal analysis shows a tendency toward microquantity. The weight of a sample is closely related to the morphological features of DTA curves of some minerals.
目前，热分析的发展趋向于微量化，但样品重量过少时有些矿物差热曲线的形态特征就要发生改变。
Pyrite roasting process was studied by using TG-DTA thermal analysis. The effects of sample size, heating rate and roasting atmosphere on the roasting process were discussed.
用TG - DTA热分析法研究黄铁矿在不同粒度和不同升温速率及不同气氛中的焙烧过程。
Pyrite roasting process was studied by using TG-DTA thermal analysis. The effects of sample size, heating rate and roasting atmosphere on the roasting process were discussed.
用TG - DTA热分析法研究黄铁矿在不同粒度和不同升温速率及不同气氛中的焙烧过程。
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