磁性脂质微粒固定化金属离子的制备及其吸附特性研究  

Preparation and Adsorption Properties of Magnetic Lipid Particle Immobilized Metal Ion

作　　者：蒙华琳[1] 林春玲 陆苑[1] 陆玉婷[1] 伍善广[1] MENG Hua-lin;LIN Chun-ling;LU Yuan;LU Yu-ting;WU Shan-guang(Guangxi University of Science and Technology,Guangxi Liuzhou 545005,China)

机构地区：[1]广西科技大学,柳州广西545005

出　　处：《广州化工》2021年第13期56-58,共3页GuangZhou Chemical Industry

基　　金：国家自然科学基金(21766003)。

摘　　要：以磷脂含量及金属离子吸附能力为指标,正交试验优化磁性脂质微粒固定化金属离子(NS-NI^(2+))的制备工艺,考察NS-NI^(2+)对长蛇鲻蛋白酶解物5 kDa渗透液(LFPH-I)的吸附特性。结果表明,NS-NI^(2+)最优制备工艺为:磷脂0.4 g,N-十六烷基亚氨基二乙酸钠(HIDA)0.25 g,搅拌速度800 rpm,硬脂酸2.0 g,聚乙烯醇(PVA)浓度2%,Fe 3O 40.33 g。NS-NI^(2+)对长蛇鲻蛋白酶解物5 kDa渗透液(LFPH-I)吸附动力学符合准二级动力学模型。By using phospholipid content and metal ion adsorption capacity as indexes,the preparation process of magnetic lipid particle immobilized metal ion(NS-NI^(2+))was optimized by orthogonal test.The adsorption properties of the Lizard Fish protein hydrolysate(LFPH-I)by NS-NI^(2+) were investigated.The results indicated that the optimum preparation conditions of NS-NI^(2+) were as follows:phospholipid dosage was 0.4 g,N-hexadecyliminodiacetic acid was 0.25 g,stirring speed was 800 rpm,stearic acid was 2.0 g,PVA concentration was 2%,Fe_(3)O_(4) as 0.33 g.The adsorption kinetics of LFPH-I by NS-NI^(2+) accorded with the quasi-second-order kinetic model.

关 键 词：磁性脂质微粒固定化金属离子 工艺优化 吸附 长蛇鲻蛋白酶解物 

分 类 号：Q811[生物学—生物工程]