L-苏糖酸锌的制备及其性质  

Synthesis and Properties of Zinc L-Threonate Complex

作　　者：陈三平[1] 俱战锋[1] 高胜利[1] 

机构地区：[1]西北大学化学系,西安710069

出　　处：《应用化学》2001年第9期761-763,共3页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金 ( 2 98710 2 3);陕西省教育厅专项科研计划项目 ( 0 0 JK131)资助课题

摘　　要：The solid complex of zinc L threonate has been prepared from the reaction mixture of L ascorbic acid, calcium carbonate and hydrogen peroxide in water at 0～3 ℃. It is purified by methyl alcohol extraction under reduced pressure. The composition of the complex is determined by chemical and elemental analyses and its formula fits Zn(C 4H 7O 5) 2. The purity of the complex is 99 60% by HPLC. The IR spectra indicate that Zn 2+ in the complex coordinates to oxygen atom of the carbonyl group and oxygen atom of the carboxyl group, while the proton of the carboxyl group is dissociated. It is assumed that the coordination number of Zn 2+ is 4. The TG DTG results show that the intermediate and final products of the thermal decomposition of the complex are Zn(CH 3COO) 2 and ZnO, respectively.The solid complex of zinc L threonate has been prepared from the reaction mixture of L ascorbic acid, calcium carbonate and hydrogen peroxide in water at 0～3 ℃. It is purified by methyl alcohol extraction under reduced pressure. The composition of the complex is determined by chemical and elemental analyses and its formula fits Zn(C 4H 7O 5) 2. The purity of the complex is 99 60% by HPLC. The IR spectra indicate that Zn 2+ in the complex coordinates to oxygen atom of the carbonyl group and oxygen atom of the carboxyl group, while the proton of the carboxyl group is dissociated. It is assumed that the coordination number of Zn 2+ is 4. The TG DTG results show that the intermediate and final products of the thermal decomposition of the complex are Zn(CH 3COO) 2 and ZnO, respectively.

关 键 词：L-苏糖酸 L-苏糖酸锌 制备 表征 钙补充剂 

分 类 号：TQ462.24[化学工程—制药化工]