摘要
将壳聚糖用作填充色谱柱的吸附剂,对壳聚糖色谱柱吸附铝(Ⅲ)的最佳试验条件作了试验,并取得如下结果:①铝(Ⅲ)柱吸附时溶液的最佳酸度为pH 5.0;②溶液通过吸附柱达到吸附平衡所需的时间为4 h,测得静态饱和吸附量为5.26×10-4mg.L-1;③溶液通过吸附柱的适宜流速为1 mL.min-1;及④用1 mol.L-1硫酸作洗脱剂可取得最佳效果。上述铝(Ⅲ)的壳聚糖吸附富集条件成功地应用于工业废水中铝(Ⅲ)的络天青S光度测定法,方法的回收率为96.7%,方法简便。
Chitosan was used as column filling adsorbent and used for column enrichment of Al （Ⅲ） from waste water. Optimum conditions for the adsorption of Al （Ⅲ ） on chitosan were studied and the results obtained were as follows：① acidity of sample solution： pH 5. 0; O time of attaining adsorption equilibrium： 4 h; ② static saturated adsorption capacity： 5. 26× 10^-4mg· L^-1;② flow-rate of sample solution passing through the column： 1 mL ·min^-1 ; ⑤ 1 mol · L^-1 H2SO4 as desorbent of AI（Ⅲ ） from the column. Desorbed Al（Ⅲ ） in dil. H2SO4 was determined photometrically with chromazurol S as color reagent. Test for recovery by standard addition method was performed giving a value of average recovery of 96. 7%.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2007年第4期306-307,共2页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
关键词
壳聚糖
吸附
富集
铝(Ⅲ)
光度法
废水
Chitosan
Adsorption
Enrichment
Aluminium
Photometry
Waste water
