实用医学杂志2012，Vol.28Issue(11)：1808-1810,3.DOI:10.3969/j.issn.1006-5725.2012.11.022
草酸钙结石不同层面的扫描电镜能谱和X线衍射分析
Analysis of the calcium oxalate stone composition in different layers by SEM-EDS and X-ray diffraction
摘要
Abstract
Objective To analysis the chemical composition of calcium oxalate stones in different layers and study the mechanisms of their formation. Methods 24 calcium oxalate calculus were collected and analyzed in different layers by scanning electron microscope-energy dispersive spectrometer (SEM-EDS) and X-ray diffraction (XRD). Results The 24 mix stones which major constituent was calcium oxalate all contained calcium phosphate. SEM-EDS showed the percentages of carbon in core , middle and outside of the stone were 27.97%, 30.83%, 33.73%, respectively. Those of calcium werel2.05%, 9.36%,8.95% and phosphorus were 3.28%, 2.34%, 1.67%, which have significant differences (P ＜ 0.05). The XRD indicated that calcium oxalate and calcium phosphate crystals were founded in the core of the stone, while calcium oxalate crystals were founded in the outer layers. Conclusions The results of stone component analysis were more accurate by combining SEM-EDS with XRD. The mixed calcium oxalate stones may originate from the deposit of calcium phosphate crystals and followed by calcium oxalate crystals, which may be the cause of the stone formation.关键词
草酸钙结石/扫描电镜能谱分析/X-线衍射/结石成分Key words
Calcium oxalate stone/ SEM-EDS/ X-ray diffraction/ Stone composition引用本文复制引用
冯彬,姜宁,王国增,章璟,刁海彦..草酸钙结石不同层面的扫描电镜能谱和X线衍射分析[J].实用医学杂志,2012,28(11):1808-1810,3.基金项目
上海市卫生局科研计划项目(编号:2008109) （编号:2008109）
