Citation: HOU Jing, LIU Mengting, LI Shoudao, CHEN Dan, GUAN Zhuolong, LU Yuepeng. Determination of two non-phthalates plasticizers in edible oil by gas chromatography-tandem mass spectrometry[J]. Chinese Journal of Chromatography, ;2019, 37(12): 1368-1372. doi: 10.3724/SP.J.1123.2019.06015 shu

Determination of two non-phthalates plasticizers in edible oil by gas chromatography-tandem mass spectrometry

Wuhan Institute for Food and Cosmetic Control, Wuhan 430012, China

Received Date: 24 June 2019

A gas chromatography-tandem mass spectrometry (GC-MS/MS) method was developed for the simultaneous determination of di (2-ethylhexyl) terephthalate and tris (2-ethylhexyl) trimellitate in edible oils. The plasticizers in the samples were extracted with acetonitrile. The extract was purified by freezing at -20 ℃, and determined by GC-MS/MS in selective reaction monitoring mode. For the two compounds, the limit of detection and limit of quantification were 0.03 mg/kg and 0.1 mg/kg, respectively, and the linear range was 0.1-10 mg/kg. The recoveries of the two compounds ranged from 81.04% to 108.31% at three spiked levels (0.1, 0.3, and 1.0 mg/kg), and the relative standard deviation ranged from 0.70% to 9.91%. The method is simple, accurate, and suitable for the determination of di (2-ethylhexyl) terephthalate and tris (2-ethylhexyl) trimellitate in edible oils.
- gas chromatography-tandem mass spectrometry (GC-MS/MS),
- di-2-ethylhexyl terephthalate,
- tris (2-ethylhexyl) trimellitate,
- edible oil
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