Reversed phase StrataTM-X resin as sorbent for automatic on-line solid phase extraction atomic absorption spectrometric determination of trace metals: comparison of polymeric-based sorbent materials
| Autor: | Georgia Giakisikli, Viktoria Kazantzi, Aristidis N. Anthemidis |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Flow injection analysis
Detection limit Sorbent Chromatography Chemistry Elution Health Toxicology and Mutagenesis 010401 analytical chemistry Extraction (chemistry) Public Health Environmental and Occupational Health Soil Science 010402 general chemistry 01 natural sciences Pollution 0104 chemical sciences Analytical Chemistry law.invention law Environmental Chemistry Solid phase extraction Absorption (chemistry) Atomic absorption spectroscopy Waste Management and Disposal Water Science and Technology |
| Zdroj: | International Journal of Environmental Analytical Chemistry. 97:508-519 |
| ISSN: | 1029-0397 0306-7319 |
| DOI: | 10.1080/03067319.2017.1336234 |
| Popis: | A novel on-line flow injection solid phase extraction method for the preconcentration of trace toxic metals prior determination by flame atomic absorption spectrometry (FI-SPE-FAAS) was developed. The potential application of the hydrophobic reversed phase co-polymer sorbent StrataTM-X packed into an on-line microcolumn for the quantification of Cd(II), Pb(II), Cu(II) and Cr(VI) was demonstrated for the first time. The method was based on the on-line formation of metal complexes using sodium diethyl-dithiocarbamate (DDTC) and on the subsequent retention of them onto the sorbent material. The target analytes were completely eluted by methanol and, subsequently, directed to FAAS for quantification. All chemical and flow variables affecting the performance of the developed method were thoroughly studied and optimised. For a preconcentration time of 90 s and a sampling frequency of 28 h−1, enhancement factors of 72, 140, 185, 63 and detection limits of 0.18, 1.6, 0.20 and 1.2 μg L −1 were obtained for... |
| Databáze: | OpenAIRE |
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