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| Determination of five antioxidants in edible oil by QuEChERS-ultra high performance liquid chromatography |
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| DOI： |
| KeyWord:QuEChERS ultra high performance liquid chromatography edible oil antioxidant |
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| Author Name | Affiliation | | LI Ya1, LIANG Jianfeng1,KE Lijian2, ZHONG Shuiqiao2,JIANG Deli2 | 1.College of Food and Pharmaceutical Engineering,Wuzhou University, Wuzhou 543002， Guangxi, China
2.Wuzhou Food and Drug Inspection Institute, Wuzhou 543002, Guangxi, China |
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| Abstract: |
| In order to quickly and accurately determine the antioxidants in edible oil, a method for simultaneous determination of butylhydroanisole(BHA), tertiary butylhydroquinone (TBHQ), dibutylhydrotoluene (BHT), propyl gallate (PG) and octyl gallate (OG) in edible oil was established by QuEChERS-ultra high performance liquid chromatography.The sample was dissolved and extracted with methanol, and the extract was tested on the machine after freezing centrifugation and purification and separation with detergent. The ultra high performance liquid chromatography used acetonitrile-water as the mobile phase for gradient elution, and the external standard method was used for quantification. The results showed that the linear relationship of the five antioxidants was good in the range of 1.0-100.0 mg/L, the detection limits were not more than 1.6 mg/kg, the spiked recovery rate was 85.78%-100.85%, and the RSD was 2.40%-6.01%. In conclusion, this method has the characteristics of simple operation, good reproducibility and high sensitivity, and is suitable for the detection and analysis of common antioxidants in animal and vegetable oils. |
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