Influence of the support base on the sorption of Co(II) with mixed solvents

Octadecyl Bonded Silica Membrane Disk Modified with Cyanex302 for Preconcentration and Determination of Traces of Cobalt in Urine by Flame Atomic Absorption Spectrometry

“…Different solid supports such as silica gel (Kubota, Moreira, and Gushikem 1989;Karadjova 1999), Diaion resin (Tuzen et al 2007;Soylak and Tuzen 2006), activated carbon (Ghaedi, Ahmadi, and Soylak 2007;Ghaedi et al 2008;Mikula and Puzio 2007), microcrystalline naphthalene (Eskandari et al 2004), Amberlite XAD series resins (Filik 2002;Prabhakaran and Subramanian 2003;Kartal et al 2007;Lemos et al 2006;Guo et al 2004;Tewari and Singh 2000;Brajter, OlbrychSlexzynska and Staskiewicz 1988;Someda 2007;and Venkatesh, Jain, and Singh 2005) have been reported for preconcentration of cobalt from different types of samples. The studies based upon these sorbents have been applied for determination of cobalt from vegetable samples (Ghaedi, Ahmadi, and Soylak 2007;Prabhakaran and Subramanian 2003); tea (Tuzen et al 2007); rice, wheat, and tomato (Soylak and Tuzen 2006); alloy and multi-vitamin preparation (Eskandari et al 2004;Prabhakaran and Subramanian 2003); meat and cow liver (Ghaedi et al 2008), etc.…”

“…SPE methods based upon impregnation of pyrocatechol violet (Brajter, Olbrych-Slexzynska, and Staskiewicz 1988) and thenoyltrifuoroacetone mixed with trioctyl phosphine oxide (TOPO) (Someda 2007) were reported. Bacillus sphaericus loaded on Diaion SP850 and microcrystalline Solid Phase Extraction 2521 naphthalene mixed with a-Benzilmonoxime were used for its analysis in food and pharmaceutical samples respectively (Tuzen et al 2007;Eskandari et al 2004).…”