Thin-layer chromatographie separation of alkaline earth metals on diethylaminoethyl cellulose.
Thin-layer Chromatographic behaviour of magnesium, calcium, strontium and barium on diethylaminoethyl cellulose has been investigated in methanol-nitric acid mixtures. R(f) values are in the order magnesium > calcium > strontium > barium. The differences in R(f) values are large enough to allow good separations of the four metal ions from each other. The best separation is obtained by the ascending technique with methanol-8M nitric acid (20:1, v v ).
Ishida
K
K
Laboratory for Analytical Chemistry Faculty of Engineering University of Chiba Yayoi-cho, Chiba, Japan.