Abstract
In this work, Fe
3O
4-graphene oxide nanocomposite (GO-Fe
3O
4) was prepared as effective absorbent for magnetic solid phase extraction (MSPE) of trace quantities of cadmium ions in environmental water and rice samp
چکیده کامل
Abstract
In this work, Fe
3O
4-graphene oxide nanocomposite (GO-Fe
3O
4) 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-Fe
3O
4 was characterized by scanning electron microscopy (SEM) and X-ray powder diffraction (XRD). Various parameters affecting GO-Fe
3O
4 MSPE of cadmium have been investigated. Under the optimized experimental conditions, the limit of detection (LOD) for Cd
2+ 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-Fe
3O
4 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.
پرونده مقاله