摘要
本文用茜素Ｓ作萃取剂，研究了Ｆｅ（Ⅲ）、Ｃｏ（Ⅱ）、Ｎｉ（Ⅱ）、Ｃｕ（Ⅱ）、Ｚｎ（Ⅱ）、Ｃｄ（Ⅱ）、Ａｌ（Ⅲ）在聚乙二醇－硫酸铵－茜素Ｓ体系中的非有机溶剂萃取行为。实验结果表明，在ｐＨ５的ＨＡｃ－ＮａＡｃ缓冲溶液中，Ｆｅ（Ⅲ）、Ａｌ（Ⅲ）与茜素Ｓ的络合物可被ＰＥＧ相几乎完全萃取，Ｃｕ（Ⅱ）、Ｎｉ（Ⅱ）部分被萃取，而Ｃｏ（Ⅱ）、Ｚｎ（Ⅱ）、Ｃｄ（Ⅱ）则不被萃取，从而实现了Ｆｅ（Ⅲ）与Ｃｏ（Ⅱ）、Ｚｎ（Ⅱ）、Ｃｄ（Ⅱ）及Ａｌ（Ⅲ）与Ｃｏ（Ⅱ）、Ｚｎ（Ⅱ）、Ｃｄ（Ⅱ）混合离子间的定量分离。
In polyethylene glycol ammonium sulfate alizarin S system the extraction separation behaviour of the complexes of Fe(Ⅲ)、Co(Ⅱ)、Ni(Ⅱ)、Cu(Ⅱ)、Zn(Ⅱ)、Cd(Ⅱ)and Al(Ⅲ) was investigated .The results indicated that the complexes of Fe(Ⅲ),Al(Ⅲ)with Alizarin S were almost completely extracted by the PEG phase,Cu(Ⅱ) and Ni(Ⅱ) were partly extracted,while Co(Ⅱ),Zn(Ⅱ),Cd(Ⅱ)were not extracted from the aqueous solution of HAc NaAc(pH5).So Fe(Ⅲ) was quantitatively separated from the mixed solution of Fe(Ⅲ),Co(Ⅱ),Zn(Ⅱ) and Cd(Ⅱ) ions and Al(Ⅲ) was quantitatively separated from the mixed solution of Al(Ⅲ),Co(Ⅱ),Zn(Ⅱ) and Cd(Ⅱ) ions.
出处
《分析试验室》
CAS
CSCD
1997年第1期75-78,共4页
Chinese Journal of Analysis Laboratory
关键词
聚乙二醇
茜素S
萃取
硫酸铵
Polyethylene glycol
alizarin S
extraction separation
Iron(Ⅲ)
Cobalt(Ⅱ)
Nicked(Ⅱ)
Copper(Ⅱ)
Zine(Ⅱ)
Cadmium(Ⅱ)
Aluminum(Ⅲ)
