Experimental results obtained by PIXE technique on some fake Ming-Chenghua Blue-and-White porcelains made in the early period of Ching dynasty were reported in this paper. The chemical composition of both body and glaze were measured, and by choosing a set of proper parameters, we can distinguish the fake ones from the original Chenghua Blue-and-White porcelains.%用质子激发X荧光技术对瓷胎、瓷釉的化学成分进行了测量，选用瓷釉和瓷胎相结合的判别方法，可以将清代的仿品与明代的真品区分开来。
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