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2009 | 7 | 4 | 945-954
Tytuł artykułu

Solid phase selective separation and green preconcentration of Cu, Zn, Pb and Cd in drinking water by using novel functionalized resin

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A new solid - phase extraction sorbent was developed based on stepwise anchoring of two ligand molecules for the determination of copper, zinc, lead and cadmium in drinking water by flame AAS. Amberlite XAD-2 functionalized with 4′-(2-hydroxyphenylazo)-3′-methyl-1′-phenyl-2′-pyrazolin-5′-one (HPAPyr) was utilized for preconcentration/separation of these elements. The sorbent was prepared by two successive azo coupling reactions. First, 2-aminophenol was anchored to the amino groups in the resin resulted from nitration followed by reduction. Then, the resulted 2-aminophenol functionalized resin was further diazotized and coupled to the pyrazolone compound and the final product HPAPyr-XAD-2 was characterized by IR and elemental analysis. The optimum pH range for sorption, shaking time, exchange capacity, sample flow rate, preconcentration factor and interference from co-existing ions were investigated. All metal ions were quantitatively desorbed from the resin by 4.5 mol L−1 nitric acid solution. The sorbent provides limit of detection within the range 0.9–3.3 µg L−1 and concentration factor up to 250. The procedure was validated by analysis of certified material NIST-SRM 1577b. Application to drinking water showed satisfactory results with relative standard deviation RSD ≤ 8.5%. [...]
Słowa kluczowe
Wydawca

Czasopismo
Rocznik
Tom
7
Numer
4
Strony
945-954
Opis fizyczny
Daty
wydano
2009-12-01
online
2009-10-06
Twórcy
autor
  • Chemistry Department, Faculty of Science, Fayoum University, 11371, Fayoum City, Egypt, n_burham@yahoo.com
autor
  • Chemistry Department, Faculty of Science, Fayoum University, 11371, Fayoum City, Egypt
  • Chemistry Department, Faculty of Science, Ain Shams University, 11341, Cairo, Egypt
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-009-0089-9
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