萃取分光光度法测定锑白中微量铅  

Extraction- Spectrophotometric Determination of Microamount Lead in Sb2O3

作　　者：周宗侯 梁亚雄[1] 

机构地区：[1]广东工学院化工系

出　　处：《冶金分析》1991年第6期13-15,共3页Metallurgical Analysis

摘　　要：用铜试剂CCl_4溶液萃取铅后,用CuSO_4溶液与无色的萃取液振荡置换出铅,然后测定棕色铜络合物萃取液的吸光度,间接测定铅.本文对大量Sb(Ⅲ)存在下萃取铅的最佳条件作了研究.The colorless CCl4 extract of Pb ( DDTC )4 is shaken with an aqueous CuSOi solution( 5% ) and the absorbance of the resulting brown Cu(DDTC)4 carbon tetrachloride solution is measured at 435 nm, for indirect determination of lead. In this paper the optimum condition of extraction lead in the presence of the macrocomponent antimony (Ⅲ) in solution has been studied.

关 键 词：锑白 分光光度法 铅 微量分析 

分 类 号：TF801.3[冶金工程—有色金属冶金]