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.
出处
《冶金分析》
CAS
CSCD
北大核心
1991年第6期13-15,共3页
Metallurgical Analysis
