山东省胃癌高低发地区主要食物中微量元素的PIXE分析  

Analysis of trace elements in food from high and low incidence districts of gastric carcinoma in Shandong province by PIXE

作　　者：刘希举[1] 刘清前[1] 程杰[2] 张连平[2] 穆宝芬[3] 薛召南[3] 成桂萍[3] 

机构地区：[1]山东大学,济南250100 [2]山东省医学科学院,济南250014 [3]南开大学,天津300071

出　　处：《核技术》1999年第4期230-232,共3页Nuclear Techniques

基　　金：山东省科委资助课题

摘　　要：介绍了用PIXE技术分析食物中微量元素的方法，给出了山东省胃癌高发区栖霞县和低发区苍山县当地产主要食物的微量元素谱。t检验结果显示，栖霞县食物中Sr、Ni、Cu、Mn和Fe的含量显著高于苍山县，而Se的含量则相反。A method for measuring trace elements in food by PIXE technique is presented. Concentrations of trace elements in food from high incidence district of gastric carcinoma, Qixia county, and from low incidence district, Cangshan county, both in Shandong province, are determined. The t-test indicates that the concentrations of Sr, Ni, Cu, Mn and Fe in food from Qixia county are significantly higher than those from Cangshan county, but a converse result is obtained for Se.

关 键 词：胃癌 食物 微量元素 PIXE分析 高发区 低发区 

分 类 号：R730.23[医药卫生—肿瘤] TS201.2[医药卫生—临床医学]