1995 Volume 11 Issue 1 Pages 181-182
The advantages of fibrous materials filled with chelating sorbents for preconcentration purposes are discussed. These materials are suitable for the preparation of minicolumns used for on-line analysis. Minicolumns packed with fibers and chelating sorbents with amine, 8-hydroxyquinoline and 3(5)-methylpyrazole groups were used for the preconcentration of heavy metals and gold. The conditions of preconcentration and elution were examined. Satisfactory results of metal determination using these minicolunms were demonstrated for the example of copper and gold determination by the ICP AES method. The coefficient of concentration was 22; the limit of detection was 1μg/l.
