Solid phase extraction and preconcentration of Cu(II), Pb(II), and Ni(II) in environmental samples on chemically modified Amberlite XAD-4 with a proper Schiff base

Abstract

A new chelating resin, Amberlite XAD-4 loaded with N,N-bis(salicylidene)cyclohexanediamine (SCHD), was synthesized and characterized. The resin Amberlite XAD-4-SCHD was used for selective separation, preconcentration, and determination of Cu(II), Pb(II), and Ni(II) ions in water samples by flame atomic absorption spectrometry (FAAS). Effects of pH, concentration, and volume of elution solution; flow rate of elution; and sample solution, sample volume, and interfering ions for the recovery of the analytes were investigated. These metal ions can be desorbed with 0.5-M HNO3 (recovery, 98%-101%). The sorption capacity was found between 1.38×10(-1) and 3.58×10(-1) mmol/g. In order to evaluate the accuracy of the proposed procedure, the certified reference materials, BCR-032 (Moroccan phosphate rock) and BCR-715 (industrial effluent wastewater), were analyzed. The detection limits of the method were found to be 0.11, 1.91, and 0.43 μg/L for Cu(II), Pb(II), and Ni(II), respectively. The method was applied to the extraction and the recovery of copper, lead, and nickel in wastewater and other water samples.

Spectrometric Determination of Copper in Edible Oil Based on the Extraction with N,N′-bis(5-methoxy-salicylidene)-2-hydroxy-1,3-propanediamine

“…There have been some researches dealing with the analytical applications with the Schiff bases (Ghaedi et al, 2009;Kara et al, 2009;Köse Baran and Bağdat Yaşar, 2012b;Topuz and Macit, 2011). Analytical methods for the determination of copper (II), iron (III), zinc (II) and nickel (II) in edible oils based on the extraction with a Schiff base have been presented in our previous studies (Köse Baran and Bağdat Yaşar, 2010;2012a;2012b).…”

Solid phase extraction of Cd(II), Pb(II), Zn(II) and Ni(II) from food samples using multiwalled carbon nanotubes impregnated with 4-(2-thiazolylazo)resorcinol

“…Solid phase extraction (SPE) is a cost-effective and important preconcentration-separation technique for separationenrichment of trace metal ions that offers important advantages, including simplicity, rapid analysis, and simple adaptation to automation [16][17][18][19][20]. Solid phase extraction also performs well in the preconcentration of trace metals with respect to minimizing solvent waste generation and the adsorption of analytes on the adsorbent in a more stable chemical form [21][22][23][24]. Adsorbents are preferred for the SPE of metal ions from environmental samples and these should have the following properties: the possibility for extracting a variety of metal ions over a wide pH range, high surface area, fast and quantitative adsorption and easy elution, ultra purity, repeated usability and accessibility [25][26][27][28][29].…”

Determination of Pb and Ni in Natural Water Samples after Solid Phase Extraction with Layered Double Hydroxide (LDH) Nano-Particles

“…Solid phase extraction (SPE) is a cost-effective and important preconcentration-separation technique for separation enrichment of trace metal ions that offers important advantages, including simplicity, rapid analysis, and simple adaptation to automation [23][24][25][26][27]. Solid phase extraction also performs well in the preconcentration of trace metals with respect to minimizing solvent waste generation and the adsorption of analytes on the adsorbent in a more stable chemical form [28][29][30][31]. Adsorbents are preferred for the SPE of metal ions from environmental samples and these should have the following properties: the possibility for extracting a variety of metal ions over a wide pH range, high surface area, fast and quantitative adsorption and easy elution, ultra purity, repeated usability and accessibility [32][33][34][35][36].…”