期刊
FOOD CHEMISTRY
卷 262, 期 -, 页码 118-128出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2018.04.072
关键词
Crown ether; Dispersive micro solid phase extraction; Microfunctionalized carbon nanotubes; Sudan dyes and their metabolites; Food analysis; Ultrahigh-performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry
资金
- General Program of National Natural Science Foundation of China [81573552]
- public welfare research project of Zhejiang Province [LGF18H280006]
- Projects for Study Abroad Returnees of Hangzhou (China)
- Hangzhou 131 middle-aged and young talent training plan (China)
In this study, dispersive micro solid phase extraction (DMSPE) combined with ultrahigh-performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry method was established to extract and determine sudan dyes and their metabolites in real samples. The crown ether microfunctionalized multi-walled carbon nanotubes (MWCNTs) was applied as the sorbent in DMSPE procedure. Several experimental parameters that can effect the extraction performance of the DMSPE method were investigated separately by a univariate method. The validation data showed that the limits of detection were in the range of 0.084-13.13 mu g/kg, the mean recoveries were ranged from 80.15 to 103.58% for six samples. Compared with other published methods, the proposed method was more effective, more time-saving and more eco-friendly. Finally, the developed method was successfully applied to enrich and detect sudan dyes and their metabolites in real samples.
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