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| 离子液体辅助萃取测定油脂中常见多环芳香烃 |
| Determination of common polycyclic aromatic hydrocarbons in oils by ionic liquids-assisted extraction |
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| DOI： |
| 中文关键词: 多环芳香烃 离子液体 二甲基亚砜 高效液相色谱 油脂 |
| 英文关键词:polycyclic aromatic hydrocarbons ionic liquids dimethyl sulfoxide high performance liquid chromatography oil |
| 基金项目: |
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| 中文摘要: |
| 以1，2-二（3′-苄基苯并咪唑基）乙烷六氟磷酸盐为辅助萃取剂，1-丁基-3-甲基咪唑六氟磷酸盐和二甲基亚砜混合液作为载体和提取溶剂，提取油脂中常见的多环芳香烃，用碱性缓冲液净化杂质，经附带荧光检测器的高效液相色谱仪测定其含量。结果表明：目标物在0.5~50 ng/mL范围内呈现良好的线性关系，在1~50 ng/g加标量下，回收率在86.8%~92.5%之间，相对标准偏差在1.21%~2.54%之间。离子液体辅助萃取测定油脂中的常见多环芳香烃，可代替传统固相萃取法，操作方便，检测周期短，结果稳定，适用于批量化检测。 |
| 英文摘要: |
| With 1，2-bis (3′-benzyl benzimidazole-yl) ethane hexafluorophosphate as auxiliary extraction agents， 1-butyl-3-methylimidazolium hexafluorophosphate and dimethyl sulfoxide mixture as carrier and extraction solvent， common polycyclic aromatic hydrocarbons in oils were extracted. The impurities were removed by alkaline buffer and the contents of common polycyclic aromatic hydrocarbons were determined by high performance liquid chromatography with fluorescence detector. The results showed that the object showed a good linear relationship in the range of 0.5-50 ng/mL. The recovery rates were 86.8%-92.5% with dosage of standard 1-50 ng/g and the relative standard deviations were 1.21%-2.54%. The method of determination of common polycyclic aromatic hydrocarbons in oils by ionic liquids-assisted extraction could replace the method of traditional solid-phase extraction. The method had advantages of easy operation， short test cycle and stable result， and it was suitable for batch determination. |
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