M. Soylak et M. Doan, COLUMN PRECONCENTRATION OF TRACE AMOUNTS OF COPPER ON ACTIVATED CARBON FROM NATURAL-WATER SAMPLES, Analytical letters, 29(4), 1996, pp. 635-643
A method has been established for enrichment of trace amounts of coppe
r in aqueous solutions on an activated carbon column. Copper was quant
itatively retained on a chromatographic column packed with activated c
arbon, after complexation with 1-nitroso-2-naphthol or hexamethylene d
ithiocarbamate and elution with 2 M HCl in acetone. The developed meth
od was used for the determination of trace amounts of copper in water
samples with good results.(Recoveries between 95-101%, relative standa
rd deviations 3-5%)