Solid phase extraction of copper (II) by sorption on octadecyl silica membrane disk modified with a new Schiff base and determination with atomic absorption spectrometry

Metal Determinations in Olive Oil

“…The extraction methods used for metal determination in vegetable oils A Schiff base has been suggested for the extraction of metals from oils as an appropriate chelating agent under the optimum extraction conditions (Köse Baran & Bağdat Yaşar, 2010). In recent analytical applications, Schiff bases have been used in order to form complexes due to their good complexing capacity with metals (Afkhami et al, 2009;Ashkenani et al, 2009;Ghaedi et al, 2009;Khedr et al, 2005;Khorrami et al, 2004;Köse Baran & Bağdat Yaşar, 2010;Kurşunlu et al, 2009;Mashhadizadeh et al, 2008;Shamspur et al, 2003;Tantaru et al, 2002;Ziyadanoğulları et al, 2008). The chemists have attended to the Schiff bases and their metal complexes because of their widespread applications in biological systems and industrial uses (Issa et al, 2005;İspir, 2009;Kurtaran et al, 2005;Li et al, 2007;Mohamed, 2006;Neelakantan et al, 2008;Prashanthi et al, 2008;Sharaby, 2007).…”

Kinetics, Equilibrium and Thermodynamics Studies of Fe<sup>3+</sup> Ion Removal from Aqueous Solutions Using Periwinkle Shell Activated Carbon

“…However, Adsorption processes have been reported to be an efficient economical method and the primary methods for heavy metal removal [11], the other methods are more expensive and sometimes inefficient especially when the toxic heavy metals are present in low concentrations. Adsorption technique has found extensive applications in deodorization, purification of drinking water, treatment of waste water, separation of various organic and inorganic chemicals and the adsorption of heavy metals from aqueous solutions [13] using various materials as adsorbents: zeolites [14], silica [15], resins [16], biological adsorbents [17] and activated carbon [18] [19].…”

Novel Solid Phase Extraction Procedure for Some Trace Elements in Various Samples Prior to Their Determinations by FAAS

“…Chelating resins are typically characterised by functional groups containing O, N, S and P donor atoms which coordinate to different metal ions. [13][14][15] Crosslinked copolymers containing 2-acrylamido-2-methyl-1-propanesulfonic acid functional groups (AMPS) have a great potential for many applications as ion-exchange resin and gas separation membrane in the water purification industry, and for monitoring heavy metals in various environmental samples. Chelating resins are superior for selectivity in solid phase extraction and ion exchange due to their triple functions, i.e., ion exchange, chelate formation and physical adsorption.…”