Dergiler / Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2017 / Cilt: 7 - Sayı: 4
İzonitrosoasetofenon Antranolhidrazin ile Modifiye Edilmiş Silika Jel Kullanılarak Cu(II) İyonunun Zenginleştirilmesi
- Sayfa
- 141–149
- DOI
- —
Özet
Bu çalışmada, oldukça seçici ve etkin bir adsorban olan izonitrosoasetofenon antranolhidrazin ile modifiye
Abstract
In this study, highly selective and efficient adsorbent, isonitrosoacetophenone anthranoylhydrazonemodified silica gel, was prepared and applied for separation and preconcentration of Cu2+ ion in water samples.Cu2+ ion and other metal ions were determined by Inductively Coupled Plazma Optical Emission Spectrometry.The influences of analytical parameters including pH, amount of adsorbent, sample volume, eluent volume, typeof eluent etc. on the quantitative recovery of Cu2+ were investigated. The effects of some alkaline, alkaline earth,some metal ions and anions on the recoveries of Cu2+ were also examined. Optimum pH value for the adsorptionof Cu2+ was pH 5. 2 mL of 0.5 M H2SO4 solution for Cu2+ was found to be satisfactory for the quantitative elution.Limit of detection and limit of quantitation was calculated as 0.265 μg L-1 and 0.803 μg L-1 for Cu2+ respectively.It was observed that adsorption behaviour of Cu2+ ions was fitted to the Langmiur adsorption isotherm better thanthe Freundlich isotherm. In order to validate the accuracy of the method for determination of Cu2+ ion, certifiedreference material (ground water-BCR 610) was used. The determined values were in good agreement with thecertified values. Proposed separation and preconcentration method was applied to spring, tap and sea water samples.The recoveries of Cu2+ added to water samples were in between 82-93%.