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用差热分析法对珍珠粉和其常见的伪品进行了测定。结果显示，珍珠粉和其各种伪品的热谱图具有明显的差别，表明差热分析法是鉴别珍珠和其伪品的较为理想的方法。
Differential thermal analysis of pearl powder and its common counterfeit were measured. The results show that there is a significant difference between the thermograms of pearl powder and its various counterfeits, indicating that differential thermal analysis is an ideal method for identifying pearl and its counterfeit products.