2005
DOI: 10.2116/analsci.21.923
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Silica Gel Modified with N-(3-Propyl)-O-phenylenediamine: Functionalization, Metal Sorption Equilibrium Studies and Application to Metal Enrichment Prior to Determination by Flame Atomic Absorption Spectrometry

Abstract: Trace metal ions have important roles in life, involving a wide spectrum of activities. Thus, the determination of trace metal ions is becoming increasingly important because of increased interest in environmental samples. [1][2][3] Flame atomic absorption spectrometry (FAAS) has been widely used for the determination of trace heavy metal ions in water samples, [4][5][6] because of its high specificity and low cost. The presence of even low concentrations (ppb) of some heavy metals in natural water systems can… Show more

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Cited by 19 publications
(7 citation statements)
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“…The Pb(II) ion could not be studied due to its precipitation at pH 9.0. The sorption capacities of sorbent for metal ions properly differ due to their size, degree of hydration and the values of their binding constant with the ligand immobilized onto the resin (Akl et al 2005). Table 4 Determination of Cd(II), Cu(II), Mn(II), Ni(II) and Pb(II) ions in untreated and treated waste water, and lake water samples (waste water=25 ml, lake water=200 ml, pH 9, n=3)…”
Section: Adsorption Capacitymentioning
confidence: 99%
See 1 more Smart Citation
“…The Pb(II) ion could not be studied due to its precipitation at pH 9.0. The sorption capacities of sorbent for metal ions properly differ due to their size, degree of hydration and the values of their binding constant with the ligand immobilized onto the resin (Akl et al 2005). Table 4 Determination of Cd(II), Cu(II), Mn(II), Ni(II) and Pb(II) ions in untreated and treated waste water, and lake water samples (waste water=25 ml, lake water=200 ml, pH 9, n=3)…”
Section: Adsorption Capacitymentioning
confidence: 99%
“…These methods include ion exchange (Pehlivan and Altun 2007), solvent extraction (Atanassova and Dukov 2006), cloud-point extraction (Silva et al 2001), coprecipitation (Tokalıoğlu et al 2007) and solid phase extractions (Akl et al 2005;Tokalıoğlu et al 2004;Zhu et al 2007). Solid phase extraction (SPE) is a well-established sample pretreatment technique in pharmaceutical, biomedical and environmental field because it demands less organic solvent and can remove interferences and preconcentrates the objective simultaneously.…”
Section: Introductionmentioning
confidence: 99%
“…To avoid their extreme impacts on environment and public health, several techniques have been developed to eliminate heavy metals from water including ion exchange, chemical precipitation, membrane filtration, and adsorption [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32]. However, adsorption is more extensively preferred over the other conventional techniques due to its affordable cost, simplicity, high efficiency and environmentally friendly nature [33][34][35][36][37].…”
Section: Introduction 23mentioning
confidence: 99%
“…Separation methods that discard the damaging metal ions from industrial streams and contaminated water are frequently required [1][2][3][4][5][6]. Multiple approaches including solid phase extraction, precipitation, membrane processes, as well as ion-exchange were utilized to eliminate the pollution arising from harmful metal ions [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. One of the most important natural biopolymer is cellulose.…”
Section: Introductionmentioning
confidence: 99%