摘要
讨论了经甲醛处理的绿茶对水中的Pb ̄(2+)和Cu ̄(2+)及Fe ̄(3+)的吸附性能,采用示波极谱和原子吸收分光光度法为测试手段,测得Pb ̄(2+)、Cu ̄(2+)和Fe ̄(3+)的吸附率平均值分别为83.72%、83.56%和81.89%。还考察了绿茶用量、金属离子浓度及pH值等因素对吸附率的影响.
It is a study of the green tea’s adsorption of Pb ̄(2+),Cu ̄(2+)and Fe ̄(3+).By means of Oscillo- graphic Polarograph and Atomic Adsorption Spectrophotometer the average adsorptivity of those ions is mea-sured as 83.72%,83.56%and 81.89% respectively. A comparison is made between the treated and untreatedgreen tea in regard to the sorption. Also included is a study of factors that affect the adsorptivity such as thequantity of tea,the concentration of these metallic ions and the pH of the solution.In addition,the mechanismof sorption is investigated.
出处
《四川师范学院学报(自然科学版)》
1994年第4期341-345,共5页
Journal of Sichuan Teachers College(Natural Science)
关键词
绿茶
吸附
金属离子
净水
green tea,adsorption,metallic ions.