| 刊名 | Agricultural Biotechnology |
| 作者 | Lei ZHANG |
| 作者单位 | Anhui Institute for Food and Drug Control, National Agriculture Vice-processing Food Surveillance Test Center, |
| DOI | DOI:10.19759/j.cnki.2164-4993.2023.03.025 |
| 年份 | 2023 |
| 刊期 | 3 |
| 页码 | 113-115 |
| 关键词 | Ultra-high performance liquid chromatograph-mass spectrometer; Determination; Ethyl maltol; Uncertainty |
| 摘要 | [Objectives]This study was conducted to establish an uncertainty evaluation method for the determination of ethyl maltol by ultra-high performance liquid chromatograph-mass spectrometer(UPLC-MS).[Methods]A mathematical model of uncertainty was established by analyzing the method for determining ethyl maltol using UPLC-MS.The sources of uncertainty were analyzed,and the components of uncertainty were calculated to evaluate the expanded uncertainty of the method.[Results]When the content of ethyl maltol in edible vegetable oil was 1657μg/kg,the expanded uncertainty was 22.4μg/kg(K=2,P=95%).[Conclusions]The uncertainty in this evaluation model mainly came from standard solution preparation,sample weighing,dilution of sample to constant volume,standard curve fitting,and repeated measurement. |
