| 杨金玲,江阳,薛勇,孙成均.超声分散液相微萃取-气相色谱法同时测定食品中11种防腐剂[J].济宁医学院学报,2015,(1):47-50,56 |
| 超声分散液相微萃取-气相色谱法同时测定食品中11种防腐剂 |
| Simultaneous determination of eleven preservatives in food by capillary column-gas chromatography after ultrasound-assisted dispersive liquid-liquid microextraction |
| 投稿时间：2015-01-15 |
| DOI：10.3969/j.issn.1000-9760.2015.01.013 |
| 中文关键词: 超声分散液相微萃取 气相色谱法 食品 防腐剂 |
| 英文关键词: Ultrasound-assisted dispersive liquid-liquid microextraction Gas chromatography Food Preservatives |
| 基金项目:2013济宁市科技局项目(编号:13jnwk61);2013济宁医学院科研项目(编号:JY2013KJ028) △ |
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| 中文摘要: |
| 目的 建立食品中11种防腐剂的超声分散液相微萃取-气相色谱法。方法 样品经9:1二氯甲烷-乙酸乙酯超声分散液相微萃取,FFAP毛细管色谱柱分离、FID检测器检测。结果 方法线性范围为0.068~400μg/ml,相关系数为0.9990~0.9999,回收率为84%~122%,相对标准偏差为3.11%~5.83%,方法检出限为0.026~0.23μg/ml。结论 该法简便、高效、经济、环境友好,适于不同食品中11种防腐剂同时快速测定。 |
| 英文摘要: |
| Objective To establish a method for simultaneous determination of eleven preservatives in foods by gas chromatography after ultrasound-assisted dispersive liquid-liquid microextraction.Methods The target preservatives in food samples were ultrasound-assisted dispersive liquid-liquid microextracted,and then they were separated with FFAP capillary column and detected with FID detector.Results Linear ranges of the method were between 0.068 and 400μg/mL with correlation coefficients varying from 0.9990 to 0.9999.Recoveries and relative standard deviations (RSDs)were in the range from 84% to 122% and from 3.11% to 5.83%,respectively.The limitation of detection was in the range form 0.026μg/ml to 0.23μg/ml with enrichment factors ranging from 57 to 225 for all target compounds.Conclusion The method is simple,efficient,cheap,eco-friendly and is suitable for simultaneous determination of 11 preservatives in different foods. |
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