use of modified nanocompostie for the extraction, separation, preconcentration and determination of trace amounts of copper ions in real sample

in the present study, trace amount of copper (ii) ions in real samples has been separated, preconcentrated and determined by a modified nanocomposite. the effective factors such as ph, nanocomposite amount, extraction time, eluent type, ionic strength and sample volume were optimized for quantitative determination of copper (ii) ions. the linear range of the calibration graph was between 10 and 900 ng ml⁻¹ with limit of detection (lod) 3.62 ng ml⁻¹. relative standard deviations (rsd) was 1.8%. modified nanocomposite was used for measurement of the trace amounts of cu (ii) ions in the real samples such as sea water, tap water, river water and well water with suitable fallouts.