本文对珍珠粉及其主要易混淆品珍珠层粉进行了显微、理化鉴定和含量测定的研究。结果表明:珍珠粉和珍珠层粉的显微特征和总氮含量有明显不同。 In this paper, microscopic, physicochemical identification and content determination of pearl powder and its main confusing product nacre powder were studied. The results showed that the microscopic characteristics and total nitrogen content of pearl powder and nacre powder were significantly different.