A novel solid-phase extraction method for separation and preconcentration of zirconium

Clinoptilolite was modified using 1-(2-pyridylazo)-2-naphthol (PAN) and used as a sorbent for separation and preconcentration of trace amounts of zirconium. Effect of the pH, flow rate of sample and eluting agent solutions, breakthrough volume and interference of several ions were studied. The sorption was quantitative in pH range of 3.0-4.0, whereas quantitative desorption occurred instantaneously with 2 M HCl. Linearity was observed between 0.05-9.0 ppm. The detection limit was 0.1 ppb.

کلیدواژه ها:

Zirconium ، Solid phase extraction ، Clinoptilolite ، 1-(2-pyridylazo)-2-naphthol