application of graphene oxide- magnetic nanoparticle for solid phase extraction of trace amounts of cadmium ions in environmental samples

نویسندگان

hanieh etezadi

department of chemistry, marvdasht branch, islamic azad university, marvdasht, iran leila baramakeh

department of chemistry, marvdasht branch, islamic azad university, marvdasht, iran

چکیده

abstract in this work, fe3o4-graphene oxide nanocomposite (go-fe3o4) was prepared as effective absorbent for magnetic solid phase extraction (mspe) of trace quantities of cadmium ions in environmental water and rice samples using 1, 2-dihydroxy anthraquinone-3-sulphonic acid, sodium salt (alizarin red s) and flame atomic absorption spectrometry (faas). the   go-fe3o4 was characterized by scanning electron microscopy (sem) and x-ray powder diffraction (xrd). various parameters affecting go-fe3o4 mspe of cadmium have been investigated. under the optimized experimental conditions, the limit of detection (lod) for cd2+ in the range of 1-50 ngl-1 were 0.21 and the relative standard deviation (rsds, c=50 ngl-1, n=7) were 3.2 %. the developed go-fe3o4 mspe-faas method has the advantages of rapidity, simplicity, good sensitivity, and it is suitable for the analysis of trace cadmium in samples with complex matrix.

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عنوان ژورنال:
physical chemistry and electrochemistry

جلد ۲، شماره ۳، صفحات ۱۳۵-۱۴۹

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