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用质子激发Ｘ－射线荧光分析法（ＰＩＸＥ）测定了河南省鹤壁市矿务局的健康正常人和食管上表皮重度增生（即癌前病变）患者的头发中１２种微量元素含量，比较病人与健康人发样中９种元素有显著差异，提供了微量元素与疾病的相关信息。
The contents of 12 trace elements in the hair of healthy normal and esophageal epidermal hyperplasia (pre-cancerous) patients in Hebi City Mining Bureau were determined by proton excitation X-ray fluorescence analysis (PIXE) There are significant differences among the 9 elements in healthy human hair samples, providing information on trace elements and diseases.