文献类型：期刊文章

作　　者：郑辉[1] 李祥平[1] 欧阳健明[1]

机构地区：[1]暨南大学生物矿化与结石病防治研究所化学系,广州510632

出　　处：《无机化学学报》

基　　金：国家自然科学基金(No.20471024);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)

年　　份：2005

卷　　号：21

期　　号：9

起止页码：1375-1378

语　　种：中文

收录情况：BDHX、BDHX2004、CAS、CSCD、CSCD2011_2012、IC、JST、RCCSE、RSC、SCI(收录号：WOS:000232790100020)、SCI-EXPANDED(收录号：WOS:000232790100020)、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：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 con- centration, 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 pro- mote the formation of CaOxa stones. The increase of ionic strength and the molar ratio of Ca2+/ Oxa2- also pro- motes the aggregation of COM crystals.

关 键 词：草酸钙 过饱和度 离子强度 化学计量比 凝胶  尿结石

分 类 号：O611.65] O614.231[化学类]