Online solid phase preconcentration using EGDMA-MAA copolymer for lead determination by FAAS

被引：3

作者：

Deparment of Chemistry, Trakya University, Edirne, 22030, Turkey ^{[1
]}

不详 ^{[2
]}

机构：

[1] Deparment of Chemistry, Trakya University, Edirne

[2] City Control Lab of Edirne, Edirne

来源：

Toxicol. Environ. Chem. | 2009年 / 7卷 / 1205-1215期

关键词：

Flow-injection; Lead; Preconcentration; Solid phase extraction;

D O I：

10.1080/02772240802631899

中图分类号：

学科分类号：

摘要：

A Ethylene glycol dimethacrylate (EGDMA) methacrylic acid (MAA) resin was used for preconcentration of lead at trace levels in water samples. For this purpose, a flow-injection, solid phase extraction method was developed for the determination of lead by flame atomic absorption spectrometry. Lead ions were sorbed on a EGDMA-MAA column at pH 4, followed by an elution step using 288μL of 4.0 M nitric acid solution and determination by flame atomic absorption spectrometry. Optimum conditions for quantitative sorption involving the pH, sample volume, loading and elution flow rates, eluent type, and volume were investigated. A 868-fold enrichment factor could be reached. The detection limit for the water samples, estimated from the noise on the signal obtained for 250 mL of 10μgL-1 loaded at 4.9mL min-1 was 1.04μg L-1. The method was applied for lead determination in river water samples collected in Edirne, Turkey. Recoveries of spike solutions (10 μgL-1) to river water samples were quantitative. Finally, the method was validated by the analysis of certified reference material SRM 2704 (Buffalo River Sediment). © 2009 Taylor & Francis.

引用

页码：1205 / 1215

页数：10

共 41 条

[21]

Montaser A., Golightly D.W., Inductively Coupled Plasma in Analytical Atomic Spectroscopy, (1992)

[22]

Narin I., Soylak M., Dogan M., Determination of trace metal ions by AAS in natural water samples after preconcentration of pyrocatechol violet complexes on an activated carbon column, Talanta, 52, pp. 1041-6, (2000)

[23]

Olsen S., Pessenda L.C.R., Ruzicka J., Hansen E.H., Combination of flow injection analysis with flame atomic absorption spectrometry determination of trace amounts of heavy metals in polluted seawater, Analyst, 108, pp. 905-17, (1983)

[24]

Ozcan M., Akman S., Ozeroglu C., The use of water soluble polymers for the pre-concentration and separation of copper, lead and chromium prior to their determination by graphite furnace atomic absorption spectrometry, Analytical Letters, 35, pp. 1075-83, (2002)

[25]

Ozeroglu C., Keceli G., Kinetics of the adsorption of strontium ions by a crosslinked copolymer containing methacrylic acid functional groups, Radiochimica Acta, 95, pp. 459-66, (2007)

[26]

Quinaia S.P., da Silva J.B.B., Rollemberg M.D.E., Curtius A.J., Preconcentration of lead complexed with o,o-diethyl-dithiophosphate by column solid-phase extraction using different sorbents in a flow injection system coupled to a flame atomic absorption spectrometer, Talanta, 54, pp. 687-96, (2001)

[27]

Saxena R., Singh A.K., Pyrocatechol Violet immobilized Amberlite XAD-2: Synthesis and metal-ion uptake properties suitable for analytical applications, Analytica Chimica Acta, 340, pp. 285-90, (1997)

[28]

Shemirani F., Mirroshandel A.A., Salavati-Niasari M., Kozani R.R., Silica gel coated with Schiff's base: Synthesis and application as an adsorbent for cadmium, copper, zinc, and nickel determination after preconcentration by flame atomic absorption spectrometry, Journal of Analytical Chemistry, 59, pp. 228-33, (2004)

[29]

Souza A.S., Brandao G.C., Dos Santos W.N.L., Lemos V.A., Ganzarolli E.M., Bruns R.E., Ferreira S.L.C., Automatic on-line pre-concentration system using a knotted reactor for the FAAS determination of lead in drinking water, Journal of Hazardous Materials, 141, pp. 540-5, (2007)

[30]

Tewari P.K., Singh A.K., Thiosalicylic acid-immobilized Amberlite XAD-2: Metal sorption behavior and applications in estimation of metal ions by flame atomic absorption spectrometry, Analyst, 125, pp. 2350-5, (2000)

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