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One-Step Synthesis of Polydopamine-Coated Dummy Molecularly Imprinted Polymers on the Surface of Fe<subscript>3</subscript>O<subscript>4</subscript> for Selective Extraction and Enrichment of Aflatoxin B in Foods Prior to High-Performance Liquid Chromatography Detection.
In: Journal of Analytical Chemistry, Jg. 78 (2023-02-01), Heft 2, S. 213-221
Online
academicJournal
Zugriff:
A new specific sorbent entitled molecularly imprinted polymer (Fe3O4@PDA MIP) was fabricated on the surface of ferroferric oxide nanoparticles with the dummy template of 5,7-dimethoxycoumarin through self-assembly of dopamine which is efficient for recognition and determination of aflatoxin B in food samples coupled with UPLC-FLD with a large volume flow cell. The prepared MIPs were characterized, and the adsorption properties were evaluated. The maximum adsorption capacities were 0.46 mg/g for aflatoxin B1 and 0.047 mg/g for aflatoxin B2. Under optimized conditions, the calibration plots are linear in the range of 0.005–0.5 and 0.001–0.1 ng/mL with LODs of 0.0024 and 0.0004 ng/mL for aflatoxin B1 and aflatoxin B2, respectively. The recoveries from spiked samples are 89.0–105.0% with RSDs of 5.6–7.7% in case of corn, peanut and edible oil. And after 7 cycles, the adsorption capacity of the MIPs did not decrease significantly. [ABSTRACT FROM AUTHOR]
Titel: |
One-Step Synthesis of Polydopamine-Coated Dummy Molecularly Imprinted Polymers on the Surface of Fe<subscript>3</subscript>O<subscript>4</subscript> for Selective Extraction and Enrichment of Aflatoxin B in Foods Prior to High-Performance Liquid Chromatography Detection.
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Autor/in / Beteiligte Person: | Suo, Lili ; Hu, Meihua |
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Zeitschrift: | Journal of Analytical Chemistry, Jg. 78 (2023-02-01), Heft 2, S. 213-221 |
Veröffentlichung: | 2023 |
Medientyp: | academicJournal |
ISSN: | 1061-9348 (print) |
DOI: | 10.1134/S1061934823020120 |
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