Lr. Chen et al., ION-CHROMATOGRAPHIC SEPARATION OF METALLIC-IONS ON A BONDED POLY-BETA-DIKETONE-TYPE NONCYCLIC CROWN-ETHER STATIONARY-PHASE, Journal of chromatography, 789(1-2), 1997, pp. 135-139
Tetra(oxydimethyl) poly-beta-diketone-type non-cyclic crown ether ion
chromatographic stationary phase was prepared by grafting non-cyclic c
rown ether on silica gel modified previously with gamma-aminopropyltri
ethoxysilane. The chromatographic behavior of this stationary phase wa
s studied. Very good separation was obtained for alkali, alkaline eart
h and transition metals on this stationary phase using methanol and wa
ter of various proportions as mobile phase. (C) 1997 Elsevier Science
B.V.