ZHANG Li-ping,ZHANG Wan-li,LIN Jie-chun,ZHANG Jing,LEI Yi.Screening and Quantitative Determination of New Oxyphenisatin Analogues in Foods[J].Journal of Instrumental Analysis,2024,43(09):1409-1416.
ZHANG Li-ping,ZHANG Wan-li,LIN Jie-chun,ZHANG Jing,LEI Yi.Screening and Quantitative Determination of New Oxyphenisatin Analogues in Foods[J].Journal of Instrumental Analysis,2024,43(09):1409-1416. DOI: 10.12452/j.fxcsxb.24051749.
Screening and Quantitative Determination of New Oxyphenisatin Analogues in Foods
A new oxyphenisatin analogue was discovered from a pressed candy claiming to be a weight loss product during the inspecting and monitoring of illegal adulteration. According to the law of ion fragments in the high-resolution mass spectrum of oxyphenisatin analogues,the unknown compound was characterized by ultra high performance liquid chromatography equipped with quadrupole-orbitrap mass spectrometry(UPLC-Q-Orbitrap MS). Combined with the
1
H NMR spectrum,the unknown compound was finally identified as oxyphenisatin dihexylester,a derivative of oxyphenisatin known as a cathartic drug. Oxyphenisatin dihexylester was a homologous compound of oxyphenisatin diacetate and oxyphenisatin dipropinate. Ultra high performance liquid chromatography-triple quadrupole mass spectrometry(UPLC-QQQ MS) was applied to the quantification of oxyphenisatin diacetate,oxyphenisatin dipropionate and oxyphenisatin dihexylester. There were good linear relationships for the three analytes in the range of 0.5-50 ng/mL. The limit of detection and limit of quantification were 0.025 mg/kg and 0.050 mg/kg,respectively. Recover
ies at three spiked levels in pressed candies and solid drinks were ranged from 82.6%-114%,with relative standard deviations(RSDs,
n
=6) of 1.3%-6.6%. The method has the superiorities in simple pretreatment,high sensitivity and good accuracy,which can be applied to the detection of illegal additive oxyphenisatin diacetate,oxyphenisatin dipropinate and oxyphenisatin dihexylester in foods.
关键词
双己酚丁非法添加食品超高效液相色谱四极杆轨道阱质谱三重四极杆质谱
Keywords
oxyphenisatin dihexylesterillegal additionfoodultra high performance liquid chromatographyquadrupole-orbitrap mass spectrometrytriple quadrupole mass spectrometry
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