Chelating agent free solid phase extract For

Chelating agent free solid phase extraction (CAF-SPE) method for separation and/or preconcentration of iron(III) ions

This paper presents a chelating agent free solid phase extraction (CAF-SPE) method for the separation and/or preconcentration of trace iron(III) ions. This method is based on the sorption of Fe(III) ions without using any chelating agent onto Amberlyst 36 resin. A good relative standard deviation (3%), high recovery (>95%), high enrichment factor (100), and low detection limit (0.32 m g L-1) were obtained. The adsorption capacity of resin was 117 mg g-1 for iron(III). The method was applied for the determination of iron various in water and commercial tea bag samples. The accuracy of the method was confirmed by analyzing Certified Reference Material (GBW 07605).

Anahtar Kelimeler:

Iron determination; solid phase extraction; preconcentration; water analysis; flame atomic absorption spectrometry; separation.

Chelating agent free solid phase extraction (CAF-SPE) method for separation and/or preconcentration of iron(III) ions

Keywords:

Iron determination; solid phase extraction; preconcentration; water analysis; flame atomic absorption spectrometry; separation.,

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gives very low LOD and good RSD, and can be applied to the determination of trace of Fe(III) ions in various real samples. The present method is superior in terms of linear range, detection limits, and selectivity. The detection limit achieved was satisfactory for the samples studied, and can be improved by using more sensitive detectors such as ICP-AES and ICP-MS.