Citation:
HONG Deng, XIE Wen, HOU Jianbo, HU Xiaoli, SHI Yingzhu, LI Jie. Rapid screening of sibutramine and five derivatives in health food by high performance liquid chromatography-quadrupole/electrostatic orbitrap high-resolution mass spectrometry[J]. Chinese Journal of Chromatography,
;2019, 37(11): 1173-1178.
doi:
10.3724/SP.J.1123.2019.05017
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A rapid screening method was developed to determine sibutramine and five derivatives in health food by high performance liquid chromatography-quadrupole/electrostatic orbitrap high-resolution mass spectrometry (HPLC-Q/Orbitrap HRMS). The sample was extracted with methanol via ultrasonic-assisted extraction coupled with high-speed centrifugation. Separation was performed on a Hypersil Gold column (100 mm×2.1 mm, 3 μm) by gradient elution with methanol/water (containing 0.15%(v/v) formic acid) as the mobile phase. The positive full mass scan/date-dependent MS2 (Full MS/dd-MS2) mode was used during MS detection, and quantification was achieved by resolution of the precursor mass. The analytes in the sample were separated, and accurate mass and MS2 fragment ions were simultaneously attained within 8 min. The results indicated that the obtained mass accuracy errors of the six analytes were less than 1×10-6. Good linearities were obtained in the range of 0.5-20.0 μg/L, and all correlation coefficients were higher than 0.999. The limits of quantification were 25 μg/kg and the recoveries were in the range of 93.5%-103.5% with relative standard deviations of 1.5%-7.7%. This simple-pretreatment, rapid, accurate, high-sensitivity, and high-selectivity method can be used in the rapid screening and quantitative analysis of sibutramine and its derivatives in health food.
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