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Citation: SHEN Weijian, LIU Han, ZHANG Rui, YU Keyao, CAI Lisheng, LIU Yan, WANG Hong. Determination of fipronil and its metabolites in eggs and egg products with gas chromatography-negative chemical ionization-mass spectrometry[J]. Chinese Journal of Chromatography, ;2017, 35(12): 1224-1228. doi: 10.3724/SP.J.1123.2017.09033 shu

Determination of fipronil and its metabolites in eggs and egg products with gas chromatography-negative chemical ionization-mass spectrometry

Food Laboratory of Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 210019, China

Received Date: 19 September 2017

Fund Project: Industrial Standard of Urgent Tasks Issued by National Certification and Accreditation Regulatory Commission (No. 2017B261j).

A method was established for the determination of fipronil and its metabolites in eggs and egg products with gas chromatography-negative chemical ionization-mass spectrometry (GC-NCI-MS). The targets were extracted from samples with acetonitrile, and followed by a simple cleanup step known as dispersive solid-phase extraction QuEChERS. The extracts were determined by GC-NCI-MS, and quantified by external standard method with matrix correction standard curves. The recoveries were in the range of 87.0% to 99.3% at four spiked levels (0.1, 2.0, 4.0 and 20.0 μg/kg), and all RSDs were not more than 12.7% for the four analytes. The linearity of the method was good between 0.005 and 0.10 mg/L, and all LOQs were less than 0.10 μg/kg. So this method can be used to determine the residues of fipronil and its metabolites in eggs and egg products
- QuEChERS,
- gas chromatography-mass spectrometry (GC-MS),
- negative chemical ionization (NCI),
- fipronil and its metabolites,
- eggs,
- egg products
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