“…The structure of resin-metal complexes has been studied both by potentiometric titration and by infrared spectroscopy (45,50,(58)(59)(60). Kinetics of formation of resin-metal complexes has also been studied (55,56), as has the effect of the struc ture of the macromolecular framework on the complexing proper ties of some of the resins (46,48,52 (85). and for the determination of low levels of cadmium in foods (86).…”