期刊
SEPARATION SCIENCE AND TECHNOLOGY
卷 42, 期 4, 页码 835-845出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/01496390601174000
关键词
mixed donor atom; solvent extraction; transition metal cation; UV-visible spectrometry
Two new macrocyclic ligands, containing nitrogen and sulfur donor atoms were designed and synthesized in a multi-step reaction sequence. The macrocycles with amide group were used in solvent extraction of picrates of metals such as Ag+, Hg2+, Cd2+, Zn2+, Cu2+, Ni2+, Mn2+, CO2+ and Pb2+ from aqueous phase to the organic phase. The metal picrate extractions were investigated at 25 +/- 0.1 degrees C by using UV-visible spectrometry. The extractability and selectivity of the mentioned metal picrates were evaluated according to the organic solvents. The values of the extraction constants (log K-ex) and the complex compositions were determined for the extracted complexes.
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