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One step rapid dispersive liquid-liquid micro-extraction with in-situ derivatization for determination of aflatoxins in vegetable oils based on high performance liquid chromatography fluorescence detection
Wang, Nan1,2; Duan, Chunfeng1; Geng, Xuhui1; Li, Shenghong1; Ding, Kun1; Guan, Yafeng1
刊名Food chemistry
2019-07-30
卷号287页码:333-337
关键词In situ derivatization Dispersive liquid-liquid micro-extraction Aflatoxins Vegetable oils Fluorescence detection
ISSN号0308-8146
DOI10.1016/j.foodchem.2019.02.099
通讯作者Guan, yafeng(guanyafeng@dicp.ac.cn)
英文摘要A rapid dispersive liquid-liquid micro-extraction (dllme) with in-situ derivatization method for extraction and purification of aflatoxins (afs) in vegetable oils was developed and evaluated. oil extract, dichloromethane and trifluoroacetic acid were mixed and injected into water to form a cloudy solution. afs in the oil were extracted into the numerous liquid droplets (with diameters from a few microns to dozens of microns) of extractant, where derivatization was carried out in situ. the proposed sample preparation method was coupled with high performance liquid chromatography with fluorescence detection (hplc-fld) for determination of four afs in vegetable oils. the method showed excellent linearity in three orders of magnitude, good relative recoveries, good repeatability and high sensitivity with limits of detection in range of 0.005-0.03 ng/ml. the accuracy of the method was also verified by certified reference sample. finally, different kinds of vegetable oils from the local supermarket were analyzed.
WOS关键词SOLID-PHASE EXTRACTION ; MASS-SPECTROMETRY ; BIOGENIC-AMINES ; MICROEXTRACTION ; PRODUCTS ; B-1 ; VALIDATION ; CLEANUP ; G(1) ; HPLC
WOS研究方向Chemistry ; Food Science & Technology ; Nutrition & Dietetics
WOS类目Chemistry, Applied ; Food Science & Technology ; Nutrition & Dietetics
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000460630600040
内容类型期刊论文
URI标识http://www.corc.org.cn/handle/1471x/2372730
专题大连化学物理研究所
通讯作者Guan, Yafeng
作者单位1.Chinese Acad Sci, CAS Key Lab Separat Sci Analyt Chem, Dalian Inst Chem Phys, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714
Wang, Nan,Duan, Chunfeng,Geng, Xuhui,et al. One step rapid dispersive liquid-liquid micro-extraction with in-situ derivatization for determination of aflatoxins in vegetable oils based on high performance liquid chromatography fluorescence detection[J]. Food chemistry,2019,287:333-337.
APA Wang, Nan,Duan, Chunfeng,Geng, Xuhui,Li, Shenghong,Ding, Kun,&Guan, Yafeng.(2019).One step rapid dispersive liquid-liquid micro-extraction with in-situ derivatization for determination of aflatoxins in vegetable oils based on high performance liquid chromatography fluorescence detection.Food chemistry,287,333-337.
MLA Wang, Nan,et al."One step rapid dispersive liquid-liquid micro-extraction with in-situ derivatization for determination of aflatoxins in vegetable oils based on high performance liquid chromatography fluorescence detection".Food chemistry 287(2019):333-337.
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