Abtrennung von Schwermetallionen mit Polystyrolaustauschern

Griesbach, M.; Lieser, Κ. H.

doi:10.1007/bf00470991

Cited by 7 publications

(3 citation statements)

References 18 publications

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“…Polystyrene has been widely used as a solid support by a number of workers (17)(18)(19). Chelating resins based on 8-hydroxyquinoline (HQN) with polystyrene as solid support has been widely used for the separation and preconcentration of large number of metal ions (20 -22).…”

Section: A Chelating Resins Based On Amberlite Xad-2 (Polystyrene Tymentioning

confidence: 99%

Chelating Resins and Their Applications in the Analysis of Trace Metal Ions

Garg

Sharma

Bhojak

et al. 1999

Microchemical Journal

127

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Section: A Chelating Resins Based On Amberlite Xad-2 (Polystyrene Tymentioning

confidence: 99%

Chelating Resins and Their Applications in the Analysis of Trace Metal Ions

Garg

Sharma

Bhojak

et al. 1999

Microchemical Journal

127

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“…DAHQ-loaded silica gel (0.1 g) was shaken with 50 mL of a solution containing 5 mg of one of the four metal ions for different equilibration times (2,5,10,15,20,25,30,35, 40 min, and 5 h) under optimum conditions. As recommended in the batch procedure, the metal ions were eluted from the DHAQ-modified silica gel and determined by FAAS.…”

Section: Kinetics Of Metal Sorptionmentioning

confidence: 99%

“…There is current interest in the development of new solid-phase collectors of high sorption capacity, selectivity (low matrix effect), and preconcentration factor because they are more eco-friendly and easier to reuse. Immobilization of ligands on polymeric matrices such as cellulose [2], resins of the Amberlite XAD series and Amberlyst A-26 [3,4,5,6,7,8], silica gel [9,10,11,12,13,14,15,16,17,18,19,20,21], and polystyrene [23,24,25] has recently been used to design chelating matrices. Silica gel functionalized with organic molecules have higher sorption capacity than organic polymer-based resins.…”

Section: Introductionmentioning

confidence: 99%

Enrichment of iron(III), cobalt(II), nickel(II), and copper(II) by solid-phase extraction with 1,8-dihydroxyanthraquinone anchored to silica gel before their determination by flame atomic absorption spectrometry

Goswami

Singh

2002

Analytical and Bioanalytical Chemistry

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A chelating matrix prepared by immobilizing 1,8-dihydroxyanthraquinone on silica gel modified with 3-aminopropyltriethoxysilane has been characterized by use of cross-polarization magic angle spinning (CPMAS) NMR, diffuse reflectance infrared Fourier transformation (DRIFT) spectroscopy, and thermogravimetric analysis and used to preconcentrate Fe(III), Co(II), Ni(II), and Cu(II) before their determination by flame atomic absorption spectrometry. The optimum pH ranges for quantitative sorption are 6.5-8.0, 6.0-7.0, 6.0-8.0, and 7.0-8.5 for Cu, Fe, Co, and Ni, respectively. All the metal ions can be desorbed with 2 mol L(-1) HCl or HNO3. The sorption capacity ( micromol g(-1) matrix) and preconcentration factor were 226.6, 250; 365.6, 300; 101.8, 150; and 109.0, 250 for Cu, Fe, Co, and Ni, respectively. The lowest concentration for quantitative recovery was 4.0, 3.3, 6.6, and 4.0 ng mL(-1), respectively for the four metal ions. The limits up to which electrolytes NaNO3, NaCl, NaBr, Na2SO4, and Na3PO4 and cations Ca(II) and Mg(II) can coexist with the four metal ions during their sorption without adverse effect are reported. The simultaneous enrichment and determination of all the four metals is possible if the total load of metal ions is less than the sorption capacity. Flame AAS was used to determine the metal ions in underground, tap, and river water samples (RSD

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Selective ion exchange polymers

Warshawsky

1982

Angew. Makromol. Chem.

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The current trends i n the synthesis o f selective i o n exchange polymers are presented i n the order o f functional polymers incorporating oxygen, nitrogen, phosphorous and s u l f u r ligands and also macrocyclic ligands. polymers incorporating hydroxyoximes, aminophenols, polyethyleneimines, selective anion exchange resins incorporating pseudocrown ethers, or isothiourea groups and polymeric crown ethers are discussed i n d e t a i l .

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Abtrennung von Schwermetallionen mit Polystyrolaustauschern

Cited by 7 publications

References 18 publications

Chelating Resins and Their Applications in the Analysis of Trace Metal Ions

Chelating Resins and Their Applications in the Analysis of Trace Metal Ions

Enrichment of iron(III), cobalt(II), nickel(II), and copper(II) by solid-phase extraction with 1,8-dihydroxyanthraquinone anchored to silica gel before their determination by flame atomic absorption spectrometry

Selective ion exchange polymers

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