Abstract：
:Fipronil is a highly toxic insecticide, and fipronil egg scandal greatly threaten people's health. Herein, a precise and reliable method was developed for the determination of fipronil and three metabolites in chicken egg by GC-EI-MS. Sample pretreatment took about 20 min and baseline separation of four analytes were realized within 12 min by GC-MS. Moreover, the limits of detection were 0.2-0.5 ng g-1 and the limits of quantitation was 0.5-1 ng g-1 with relative standard deviations (RSDs) lower that 3.32%. Satisfactory recoveries were get in the range of 81.16-103.57% for three levels of spiked samples. Finally, the developed method has been applied for the analysis of egg samples from four sources. Results showed that fipronil and fipronil-sulfone were detected in three samples, while fipronil-desulfinyl and fipronil-sulfide were totally absent. The method showed great promising in quantification of fipronil and its metabolites in food safety affairs.
journal_name
Food Chemjournal_title
Food chemistryauthors
Li X,Li H,Ma W,Guo Z,Li X,Song S,Tang H,Li X,Zhang Qdoi
10.1016/j.foodchem.2018.12.041subject
Has Abstractpub_date
2019-05-30 00:00:00pages
85-90eissn
0308-8146issn
1873-7072pii
S0308-8146(18)32145-9journal_volume
281pub_type
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