Adsorption of some heavy metal ions by used different immobilized substances on silica gel

Addition of Cu(II) on Si-PHQ, a new peak at 380 nm was appeared corresponding to PHQ-Cu(II) coordinated complex. The capacity of Si-PHQ for extraction of Cu(II) ion was 40 mmol/g. While, Si-Cu can extract PHQ, the maximum amount of PHQ that can be extracted was 20 mmol/g. Spectra of Fe(III) ion on Si-PHQ was recorded, new two peaks were appeared at 580 and 455 nm corresponding to the formation of PHQ-Fe(III). The capacity of Si-PHQ for extraction of Fe(III) ion was 40 mmol/g. PHQ immobilized on silica gel was useful for removal of Iron from the sytron syrup (anti-anemic).