Abstract：
:In this paper, β-cyclodextrin (β-CD) supported on porous graphene nanohybrid (β-CDPG) was obtained by self-assembly of functionalized graphene nanosheets into a three-dimensional network in the presence of ascorbic acid via an in situ graphene oxide reduction and β-CD functionalization process during a hydrothermal reaction. The prepared supramolecular nanohybrid was further packed into a reusable syringe filter holder and applied as an adsorbent for solid phase extraction of four aflatoxins (B1, B2, G1, G2). Under optimal conditions, the detection limits and linear dynamic ranges were achieved in the range of 0.0075-0.030 μg kg-1 and 0.025-100 μg kg-1, respectively and the relative standard deviations were less than 6.1%. Good recoveries were observed for analyzing target AFs in maize and cereal-based chicken feed samples ranged from 90.5 to 105%. The method offered simultaneous advantages of high supramolecular recognition and enrichment capability of β-CD and the high specific surface area of the porous graphene.
journal_name
Food Chemjournal_title
Food chemistryauthors
Tezerji NS,Foroughi MM,Bezenjani RR,Jandaghi N,Rezaeipour E,Rezvani Fdoi
10.1016/j.foodchem.2019.125747subject
Has Abstractpub_date
2020-05-01 00:00:00pages
125747eissn
0308-8146issn
1873-7072pii
S0308-8146(19)31878-3journal_volume
311pub_type
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