壳聚糖金属离子配合物吸附尿素性能研究

被引：20

作者：

周永国

齐印阁

王秀娟

杨越冬

机构：

[1] 河北职业技术师范学院!昌黎,河北职业技术师范学院!昌黎,河北职业技术师范学院!昌黎,河北职业技术师范学院!昌黎

来源：

中国生物化学与分子生物学报 | 1999年 / 04期

关键词：

Urea; Natural polysaccharide; Chitosan\|metal; Complex; Sorption;

D O I：

10.13865/j.cnki.cjbmb.1999.04.040

中图分类号：

Q539 [其他多糖];

学科分类号：

071010 ; 081704 ;

摘要：

Chitosan is a nontoxic natural polysaccharide with good biocompatibility.It can form polymer\|metal complexes with many metal cations for its extra electron pair of nitrogen.The complexes exhibit high sorptive capacity and good selectivity for urea.The sorption capacity was influenced by the metal content in the complex,time of sorption,concentration of urea etc.The sorption capacities were 83.6,79.1,72.9,69.4 and 53.4 mg/g for urea by the chitosan metal complexes of Cu(Ⅱ),Cd(Ⅱ),Co(Ⅱ),Zn(Ⅱ) and Fe(Ⅲ),respectively at pH 6.0 and the concentration of urea being 1 300 mg/L.

引用

页码：677 / 679

页数：3

共 4 条

[1] 交联聚丙烯酸固载化氧化β-环糊精的合成及其对尿素的吸附性能 [J].