| 过饱和度、反应物化学计量比及离子强度对草酸钙晶体生长的影响 |
| Effect of Supersaturation, Stoichiometrical Ratio and Ionic Strength on Crystallization of Calcium Oxalate |
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| 摘要: |
| 关键词: 草酸钙 过饱和度 离子强度 化学计量比 凝胶 尿结石 |
| 基金项目: |
| Abstract: The effect of supersaturation, oxalate/calcium stoichiometrical ratio (Oxa2-/Ca2+) and ionic strength on the crystallization of calcium oxalate (CaOxa) was investigated in gel systems by a double diffusion technique. The supersaturation affects the morphology, phase composition, and aggregation of CaOxa crystals. To a certain concentration, the effect of Oxa2- ions on the aggregation of calcium oxalate monohydrate (COM) was much stronger than that of Ca2+ ions. It indicated that the increase of the concentration of Oxa2- ions can more efficiently promote the formation of CaOxa stones. The increase of ionic strength and the molar ratio of Ca2+/ Oxa2- also promotes the aggregation of COM crystals. |
| Keywords: calcium oxalate supersaturation ionic strength stoichiometrical ratio gel urinary stone |
| 投稿时间：2005-02-22 修订日期：2005-05-09 |
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| 郑辉,李祥平,欧阳健明.过饱和度、反应物化学计量比及离子强度对草酸钙晶体生长的影响[J].无机化学学报,2005,21(9):1375-1378. |
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