AI Summary & Key Takeaways
AI InsightThe accuracy was assessed through the analysis of certified reference materials NW-TMDA-70.2 and recovery experiments.
📌 3 Key Takeaways
Abstract
Cu(II) ion was preconcentrated from a large volume of its aqueous solutions using potassium 2,6- dimethylmorpholinedithiocarbamate (KDMMDTC) as reagent on microcrystalline naphthalene (MN) in the pH range of 3.0-8.0. After filtration, the solid mass consisting of the Cu(II) complex and MN was dissolved in 5.0 mL of acetone and copper was determined by spectrophotometric method at 431 nm against the reagent blank. The main factors affecting the sorption efficiency of solid-phase extraction (SPE) (such as pH, volume of sample solution, amount of microcrystalline naphthalene coated with dithiocarbamate, effect of some foreign ions and shaking time) were studied. The linear calibration range for copper was 0.05-5.0 µgmL-1 in acetone solution with a detection limit of 0.09 µgmL-1. The effect of potential interfering ions was investigated with the proposed method which was applied to the determination of Cu(II) ion in Pharmaceutical and environmental samples and recovery values above 90% was obtained. The accuracy was assessed through the analysis of certified reference materials NW-TMDA-70.2 and recovery experiments.
Özet
Mikrokristal naftalin (MN) üzerinde pH 3.0-8.0 aralığında potasyum 2,6-dimetilmorfolinditiyokarbamat(KMDMMDTC) ligantı kullanılarak büyük hacimli sulu çözeltilerden Cu(II) iyonu önderiştirilmiştir. Cu(II)-DMMDTC kompleksi içeren MN, 5 mL asetonda çözülerek Cu(II) iyonu kör çözeltiye karşı 431 nm’despektrofotometrik metot ile tayin edildi. pH, numune çözeltisinin hacmi, DMMDTC yüklü MN miktarı,çalkalama süresi, yabancı iyon etkisi gibi katı faz ekstraksiyon (SPE) metodunun temel parametreleri incelendi.Aseton çözeltisinde 0,09 µgmL-1 tayin sınırı ile lineer kalibrasyon aralığı 0,05-5,0 µgmL-1’dir. Sudakipotansiyel yabancı iyonların etkisi araştırıldı ve önerilen metot ilaç ve çevresel numunelerden Cu(II) iyonununtayini için uygulanarak % 90 üzerinde geri kazanım değerleri elde edildi. Doğruluk, sertifikalı referans maddeNW-TMDA-70.2 analizi ve geri kazanım deneyleri ile değerlendirildi.