[Determianation of trace copper, iron and lead in purified AgNO3 with liquid membrane enrichment].
In this paper a new method of preconcentrating microimpurity Cu, Fe and Pb in high pure AgNO3 using emulsion liquid membrane technique was developed for FAAS determination. The enrichment multiple was 25, recoveries were over 95%. Matrix silver does not interfere enrichment and determination.
Yu
H
H
Department of Chemistry, Changchun Normal College, 130032 Changchun.
Li
H
H
Xu
S
S
Ma
L
L
Diao
K
K