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A novel N,N′-bis(acetylacetone)ethylenediimine functionalized silica-core shell magnetic nanosorbent for manetic dispersive solid phase extraction of copper in cereal and water samples.
- Source :
-
Food Chemistry . May2018, Vol. 249, p30-37. 8p. - Publication Year :
- 2018
-
Abstract
- Determination of heavy metals at trace levels has a great deal of importance due to their undesirable effects on human life. In this study, N,N′-bis (acetyl acetone) ethylenediimine (Fe 3 O 4 @SiO 2 -EDN) was synthesized and applied for dispersive solid phase extraction of copper in water and cereal samples followed by FAAS. Sorbent characterization was investigated by SEM, FT-IR, EDX and VSM. The effective parameters were optimized using a central composite design. Under the optimal conditions, LOD (S/N = 3) and LOQ, preconcentration factor and RSD% were found to be 1.5 ng mL −1 , 4.0 ng mL −1 , 13 and 2.3%, respectively. The calibration curve was linear within the range of 4.0–175 ng mL −1 with r 2 > 0.998. Relative recoveries were achieved within the range of 90.0–95.0%. With thanks of the good resulting analytical performance in this work, the proposed method can be applied as a suitable alternative for trace analysis of copper. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HEAVY metals
*SOLID phase extraction
*COPPER
*METALS
*EXTRACTION techniques
Subjects
Details
- Language :
- English
- ISSN :
- 03088146
- Volume :
- 249
- Database :
- Academic Search Index
- Journal :
- Food Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 127761882
- Full Text :
- https://doi.org/10.1016/j.foodchem.2017.12.085