泌尿系结石的X射线光电子能谱和X射线衍射联合分析

目的 分析近年来泌尿系结石高发区广东省珠江三角洲泌尿系结石的主要化学成份,并探讨其预防方法。方法 采用X射线光电子能谱(XPS)和X射线衍射法(XRD)对随机抽样的20个人体泌尿系统结石标本进行定性和定量分析。结果 珠江三角洲泌尿系结石以结晶态物质为主,草酸钙结石占70％,尿酸结石占30％;草酸钙结石中大都含有磷酸盐,但含量通常小于10％。结论 草酸钙、尿酸和磷酸盐构成了广东省珠江三角洲泌尿系结石的主要成份。结合 XPS和XRD两种方法,可以较为准确地检测泌尿系结石的化学组份和物相。

Combined analysis of urinary stones by X-ray photoelectron spectroscopy and X-ray powder diffraction

To seek the methods in the prevention and cure of urinary stones in the Zhujiang valley in Guangdong province. Methods Twenty random urinary stones were quantitatively and morph-ologically analyzed by X-ray photoelectron spectroscopy(XPS)and X-ray powder diffraction(XRD). Results Calcium oxalate(about 70%)was the main composition of urinary stones in the Zhujiang valley in Guangdong province; while 30% of which was uric acid stones. Most calcium oxalate stones contain phosphate; however, its content usually was less than 10%. Conclusions Calcium oxalate, uric acid and phosphate are the main compositions of urinary stones in the Zhujiang valley in Guangdong province. The compositions and phases of urinary stones can be obtained accurately by the combination of XPS and XRD.