丁二酮肟分光光度法研究酵母菌对Ni^(2+)的生物吸附作用  

Nickel Cation Biosorping Studies by Yeast with Dimethylglyoxime Spectrophotometry

作　　者：韩润平[1] 杨贯羽[1] 王妙丽 赵振江 

机构地区：[1]郑州大学化学化工学院,郑州450052

出　　处：《光谱学与光谱分析》2000年第5期739-740,共2页Spectroscopy and Spectral Analysis

基　　金：河南省科技攻关资助项目!(981 1 60 4 1 6)

摘　　要：本文用丁二酮肟显色 分光光度法研究了生物材料酵母菌对镍离子的吸附作用 ,得到了有意义的结果。pH =6时吸附量最大 ,吸附 6 0分达平衡。盐度及Ca3 + 、Mg2 + 对吸附影响不大。The beer yeast as the biosorbent of Ni- 2 + is studied.Nickel cation was deterimined by dimethylglyoxime spectrophotomet ry.The adsorbed quantity is larger at pH=6.The equilibrium time was 60 minutes.S alinity and Ca- 2+,Mg- 2+ have no significant effect on the biomate rial uptake.Higher the equilibrium concentration(c) is,larger the adsorbed q uantity(q) of yeast is.In addition,relations between c and q were fi tted with followed equations:1/q=0 340+0 075 3×1/c,r=0 995;lg q=3 989+0 789 lgc,r=0 995.So we concluded that the models of ads orption are fitted with Langmuir and Freundlich isotherm adsorption equation.

关 键 词：镍离子 生物吸附 分光光度法 酵母菌 污染物处理 

分 类 号：Q67[生物学—生物物理学] X781.1[环境科学与工程—环境工程]