Application of Anion Exchange for the Separation of Metals in 1-4 Dioxan- Water- Formic Acid Medium

Abstract

The use of 1,4- Dioxan in admixture with formic acid for the selective elution of cations on the anion-exchange resin Dowex 1x 8 in Clform
is investigated. The elution technique was coupled with UV-Visible spectrophotometry and AAS. The distribution co-efficient of
metal ions were measured in 1, 4- Dioxan-water -formic acid mixture. By applying distribution co-efficient data, the metals from the
mixtures have been separated one after another with different compositions of 1.4-Dioxan-water-formic acid solution. The average
recovery for all separations (n =26) were within 95.05%-99.04% and the standard deviation for all data was  0.73%. The developed
analytical methodology was successfully applied for the separation and quantification of metal ions in the microgram range from the real
samples collecting from natural water using UV-Visible and AAS technique.