萃取光度法测定污泥中的铝  

Determination of Aluminium(Ⅲ) in Sewage Sludge byExtraction Photometric Method

作　　者：汤丹瑜[1] 马莎[1] 胡秋芬[1] 黎勇坤[1] 尹家元[1] 

机构地区：[1]云南大学化学系,云南昆明650091

出　　处：《云南大学学报（自然科学版）》2001年第6期464-465,471,共3页Journal of Yunnan University(Natural Sciences Edition)

基　　金：云南省教委科研基金资助项目 ( 9911139)

摘　　要：采用乙醚萃取分离污泥中的铁 (Ⅲ )、铝 (Ⅲ ) ,以铬天青S(CAS)光度法测定铝的含量 .研究了萃取分离条件 ,萃取率及萃取剂用量 ,结果表明在 (1+1)HCl条件下 ,乙醚对Fe3 + 的萃取率为 99.5 8% ,在此条件下不影响Al3 + 的测定 ,该法用于污泥中的铝的测定 。The extraction of iron(Ⅲ) and aluminium(Ⅲ) from sewage sludge with diethyl was studied.The content of aluminium was determined with CAS spectrophotometry.The extraction separation conditions and the quantity of the extracting agent were investigated.The results suggested that in the media of (1+1)HCl,the extraction rate of iron(Ⅲ) was 99.58%,and the determination of Al 3+ was not influenced.This method can be applied to determine aluminium in sewage sludge with satisfactory results.

关 键 词：萃取分离 铁(Ⅲ) 光度法 污泥 测定 

分 类 号：X703[环境科学与工程—环境工程]