Ai. Elefterov et al., SIMULTANEOUS ION-CHROMATOGRAPHIC DETERMINATION OF ALKALI AND ALKALINE-EARTH METALS - USE OF A CATION-EXCHANGER WITH BONDED DIAMINOCARBOXYLIC GROUPS, Journal of analytical chemistry, 51(10), 1996, pp. 972-975
The chromatographic behavior of alkali and alkaline-earth metals on a
column packed with silica with attached lysine groups was studied with
the use of dilute solutions of perchloric acid as eluants and indirec
t conductometric detection. The optimum separation of alkali and alkal
ine-earth metal cations is obtained when a 3 x 10(-3) M solution of pe
rchloric acid is used as a mobile phase. The developed procedure was u
sed to analyze several samples of water from a water supply line and a
well.