SEPARATION AND PRECONCENTRATION OF COPPER (II) ION BY FATTY HYDROXAMIC ACIDS IMMOBILIZED ONTO AMBERLITE XAD – 4 RESIN

Dedy Suhendra (Department of Chemistry, FKIP Universitas Mataram, Jl. Majapahit no. 62 Mataram, NTB)
W. M. Z. Wan Yunus (Department of Chemistry, Faculty of Science Universiti Putra Malaysia, 43400 UPM Serdang Selangor)
Md. Jelas Haron (Department of Chemistry, Faculty of Science Universiti Putra Malaysia, 43400 UPM Serdang Selangor)
Mahiran Basri (Department of Chemistry, Faculty of Science Universiti Putra Malaysia, 43400 UPM Serdang Selangor)
Sidik Silong (Department of Chemistry, Faculty of Science Universiti Putra Malaysia, 43400 UPM Serdang Selangor)

Indonesian Journal of Chemistry
Vol 6, No 2 (2006)

A method of copper (II) ion preconcentration and separation from other ions by using a column containing fatty hydroxamic acids - loaded Amberlite XAD 4 resin (FHA-Amb) is described. Several factors, which affect the separation and preconcentration efficiency such as pH, sample volume, and concentration of eluent and flow rate, have been investigated.  A quantitative recovery of copper (II) ion from FHA-Amb resin column was obtained using 10% HNO3 solutions as eluent with a preconcentration factor of 60. A method for separation of Cu(II) from Zn(II) and Cd(II) is proposed.  A rapid sample throughput, a clean separation, a high preconcentration factor and simplicity are the main advantages in these analytical procedures.