作　　者： ; ; ;

机构地区： 暨南大学生命科学技术学院生物矿化与结石病防治研究所

出　　处： 《高等学校化学学报》 2006年第7期1220-1222,共3页

摘　　要： Crystallization of calcium oxalate（CaOxa） was investigated in the presence of magnesium tartrate（Mgtart） with different concentrations in gel system by a double diffusion technique.The phase composition and morphology of the crystals were determined by scanning electron microscopy（SEM） and X-ray diffraction（XRD）.In the presence of Mgtart with a low concentration（0.02 mol/L）,calcium oxalate monohydrate（COM） is the dominant crystal phase.The mass fraction of calcium oxalate dihydrate（COD） was about 12% and no calcium oxalate trihydrate（COT） was observed.When the concentration of Mgtart increased to 0.06 mol/L,the mass fraction of COT was increased to 33%,and that of COM decreased to 55%,but the mass fraction of COD changed less in the studied concentration range.The inhibitive capacity of Mgtart was stronger than that of either MgCl2,or H2tart,or a mixture of MgCl2 and H2tart.This indicates that not only Mgtart may be used to cure and prevent CaOxa stones,but also may had a stronger capacity than MgCl2 or H2tart or a mixture of MgCl2 and H2tart. Crystallization of calcium oxalate （CaOxa） was investigated in the presence of magnesium tartrate （ Mgtart ） with different concentrations in gel system by a double diffusion technique. The phase composition and morphology of the crystals were determined by scanning electron microscopy（SEM） and X-ray diffraction （XRD）. In the presence of Mgtart with a low concentration （0. 02 mol/L）, calcium oxalate monohydrate （COM） is the dominant crystal phase. The mass fraction of calcium oxalate dihydrate（COD） was about 12% and no calcium oxalate trihydrate （COT） was observed. When the concentration of Mgtart increased to 0. 06 mol/L, the mass fraction of COT was increased to 33%, and that of COM decreased to 55%, but the mass fraction of COD changed less in the studied concentration range. The inhibitive capacity of Mgtart was stronger than that of either MgCl2 , or H2 tart, or a mixture of MgCl2 and H2 tart. This indicates that not only Mgtart may be used to cure and prevent CaOxa stones, but also may had a stronger capacity than MgCl2 or H2tart or a mixture of MgCl2 and H2tart.

关 键 词： 草酸钙 酒石酸镁 凝胶 病理矿化

领　　域： [理学] [理学] [理学] [理学]