兰州大学机构库 >草地农业科技学院
Fast screening of aflatoxins in dairy cattle feeds with CE-LIF method combined with preconcentration technique of vortex assisted low density solvent-microextraction
Gao, Jing1; Wang, J(王静)1; Wu, Chengxin2; Hou, FJ(侯扶江)1; Chang, SH(常生华)1; Wang, ZF(王召锋)1; Pu, QS(蒲巧生)2; Guo, D(郭丁)1; Fu, H(傅华)1
2019-02
Source PublicationELECTROPHORESIS   Impact Factor & Quartile
ISSN0173-0835
Volume40Issue:4Pages:499-507
AbstractAflatoxin contamination in agricultural products poses a great threat to humans and livestock. The aim of this study was to establish a simple, rapid, highly sensitive, and inexpensive method for the simultaneous detection of aflatoxin B-1, B-2, G(1), and G(2) in agricultural products. We used a vortex assisted low density solvent-microextraction (VALDS-ME) technique for sample preconcentration and sample detection was achieved with a CE-LIF method. Aflatoxins were separated in an uncoated fused-silica capillary with the MEKC mode and were excited by a 355 nm UV laser to produce native fluorescence for detection. The obtained LOD and LOQ for the four aflatoxins were in the range of 0.002-0.075 and 0.007-0.300 mu g/L, respectively, and the analysis time was within 6.5 min. Using the established method, aflatoxins were screened in naturally contaminated dairy cattle feed samples including alfalfa, bran, and corn kernel. The result shows that the alfalfa and bran samples were contaminated with aflatoxins to varying degrees. Compared with other analytical techniques for aflatoxin screening in agricultural products, this CE-LIF method combined with VALDS-ME preconcentration technique is simple, rapid, highly efficient, and inexpensive.
KeywordAflatoxins Animal feed CE-LIF MEKC Vortex assisted low density solvent-microextraction
DOI10.1002/elps.201800339
Indexed BySCIE
Language英语
Funding ProjectKey Scientific and Technological Projects of Xinjiang[2016A03006]
WOS Research AreaBiochemistry & Molecular Biology ; Chemistry
WOS SubjectBiochemical Research Methods ; Chemistry, Analytical
WOS IDWOS:000458816900004
PublisherWILEY
Original Document TypeArticle
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/299848
Collection草地农业科技学院
化学化工学院
Corresponding AuthorWang, Jing
Affiliation1.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Lanzhou, Gansu, Peoples R China
2.Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou, Gansu, Peoples R China
First Author AffilicationCollege of Pastoral Agriculture Science and Technology
Corresponding Author AffilicationCollege of Pastoral Agriculture Science and Technology
Recommended Citation
GB/T 7714
Gao, Jing,Wang, Jing,Wu, Chengxin,et al. Fast screening of aflatoxins in dairy cattle feeds with CE-LIF method combined with preconcentration technique of vortex assisted low density solvent-microextraction[J]. ELECTROPHORESIS,2019,40(4):499-507.
APA Gao, Jing.,Wang, Jing.,Wu, Chengxin.,Hou, Fujiang.,Chang, Shenghua.,...&Fu, Hua.(2019).Fast screening of aflatoxins in dairy cattle feeds with CE-LIF method combined with preconcentration technique of vortex assisted low density solvent-microextraction.ELECTROPHORESIS,40(4),499-507.
MLA Gao, Jing,et al."Fast screening of aflatoxins in dairy cattle feeds with CE-LIF method combined with preconcentration technique of vortex assisted low density solvent-microextraction".ELECTROPHORESIS 40.4(2019):499-507.
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