不同结构的磷酸盐对凝胶体系中草酸钙晶体物相和相组成的影响  

Effect of Various Kinds of Phosphates on Phase Compositions and Morphology of Calcium Oxalate Crystals in Gel Systems

作　　者：欧阳健明[1] 陈德志[1] 李祥平[1] 

机构地区：[1]暨南大学生物矿化与结石病防治研究所,广州510632

出　　处：《无机化学学报》2004年第5期613-616,共4页Chinese Journal of Inorganic Chemistry

基　　金：广东省自然科学重点基金(No.013202);广东省重点攻关项目(No.C31401);国家自然科学基金重点项目(No.20031010);广东省"千百十工程"优秀人才培养基金(No.Q02060)资助项目。

摘　　要：The effect of phosphates structures on the morphology and phase compositions of calcium oxalate (CaC2O4) crystals was investigated in gel systems by a double diffusion technique. The phosphates studied include sodium orthophosphate (Na3PO4), sodium pyrophosphate (Na4P2O7) and sodium tripolyphosphate (Na5P3O10). The ability of phosphates to induce calcium oxalate dihydrate (COD) and to decrease the surface area of calcium oxalate monohydrate (COM) increased in the order: Na3PO4 < Na4P2O7 < Na5P3O10, and increased with their concentrations. When the concentration was 40 mmol·L-1, about 6%, 25% and 40% of COD was induced, respectively. Na4P2O7 makes the angles of COM crystals become round, and Na5P3O10 makes the angles of COM disappeared. The capacity of phosphates to induce COD and decrease the surface area of COM was benificial to the prevention and cure of urinary stones.The effect of phosphates structures on the morphology and phase compositions of calcium oxalate (CaC2O4) crystals was investigated in gel systems by a double diffusion technique. The phosphates studied include sodium orthophosphate (Na3PO4), sodium pyrophosphate (Na4P2O7) and sodium tripolyphosphate (Na5P3O10). The ability of phosphates to induce calcium oxalate dihydrate (COD) and to decrease the surface area of calcium oxalate monohydrate (COM) increased in the order: Na3PO4 < Na4P2O7 < Na5P3O10 and increased with their concentrations. When the concentration was 40 mmol (.) L-1, about 6%, 25% and 40% of COD was induced, respectively. Na4P2O7 makes the angles of COM crystals become round, and Na5P3O10 makes the angles of COM disappeared. The capacity of phosphates to induce COD and decrease the surface area of COM was benificial to the prevention and cure of urinary stones.

关 键 词：磷酸盐 凝胶体系 草酸钙晶体 物相 相组成 泌尿系结石 双扩散法 预防药物 

分 类 号：R691.4[医药卫生—泌尿科学] R983[医药卫生—外科学]