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Graphene oxide-coated stir bar sorptive extraction of trace aflatoxins from soy milk followed by high performance liquid chromatography-laser-induced fluorescence detection.
- Source :
- Food Additives & Contaminants. Part A: Chemistry, Analysis, Control, Exposure & Risk Assessment; Apr2018, Vol. 35 Issue 4, p772-781, 10p, 2 Black and White Photographs, 3 Charts, 2 Graphs
- Publication Year :
- 2018
-
Abstract
- Mycotoxins are potential food pollutants produced by fungi. Among them, aflatoxins (AFs) are the most toxic. Therefore, AFs were selected as models, and a sensitive, simple and green graphene oxide (GO)-based stir bar sorptive extraction (SBSE) method was developed for extraction and determination of AFs with high performance liquid chromatography-laser-induced fluorescence detector (HPLC-LIF). This method improved the sensitivity of AFs detection and solved the deposition difficulty of the direct use of GO as adsorbent. Several parameters including a spiked amount of NaCl, stirring rate, extraction time and desorption time were investigated. Under optimal conditions, the quantitative method had low limits of detection of 2.4-8.0 pg/mL, which were better than some reported AFs analytical methods. The developed method has been applied to soy milk samples with good recoveries ranging from 80.5 to 102.3%. The prepared GO-based SBSE can be used as a sensitive screening technique for detecting AFs in soy milk. [ABSTRACT FROM AUTHOR]
- Subjects :
- GRAPHENE
FOOD contamination
FOOD safety
AFLATOXINS
MYCOTOXINS
Subjects
Details
- Language :
- English
- ISSN :
- 19440049
- Volume :
- 35
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Food Additives & Contaminants. Part A: Chemistry, Analysis, Control, Exposure & Risk Assessment
- Publication Type :
- Academic Journal
- Accession number :
- 128617929
- Full Text :
- https://doi.org/10.1080/19440049.2017.1416182