Determination of four trace preservatives in street food by ionic liquid-based dispersive liquid–liquid micro-extraction
文献类型：期刊论文
| 作者 | Liu X(刘霞) ; Ren HX(任海霞); Jiang SX(蒋生祥); Jiang SX(蒋生祥); Qiu HD(邱洪灯)
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| 刊名 | Chem. Pap.
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| 出版日期 | 2011 |
| 卷号 | 65期号:6页码:747-753 |
| 关键词 | parabens ionic liquid dispersive liquid–liquid micro-extraction high performance liquid chromatography |
| ISSN号 | 0366-6352 |
| 通讯作者 | 蒋生祥 |
| 中文摘要 | A rapid and simple ionic liquid-based dispersive liquid–liquid micro-extraction (DLLME) method has been developed to pre-concentrate four paraben preservatives (methylparaben, ethylparaben, propylparaben, and butylparaben) from street food (pancakes). Several potentially influential factors such as the type of ionic liquid and disperser solvent, extraction time, sample pH, ionic strength, and the volume of the ionic liquid and disperser solvent were investigated. The optimum experimental conditions for the proposed micro-extraction process were: 0.1 mL of 1-octyl-3-methylimidazolium hexafluorophosphate ([C8MIM][PF6]) as an extraction solvent, 0.1 mL of acetonitrile as a disperser solvent, 5 min extraction time, and sample ionic strength of 30 % sodium chloride in water sample at pH 6.0. The LODs and LOQs were in the range of 1.0–1.5 ng g−1 and 3.5–4.5 ng g−1, respectively. Spiking recoveries were in the range of 60.1–79.5 % and the associated RSDs were all in the range of 1.8–7.0 %. The results show that DLLME is a suitable method for the determination of parabens in pancake samples and ionic liquid is a good extractant in this process. |
| 学科主题 | 分析化学与药物化学 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (NSFC, No. 20805052;No. 20975105); Natural Science Foundation of Gansu Province, China (No. 0803RJZ017) |
| 语种 | 英语 |
| 公开日期 | 2012-10-18 |
| 源URL | [http://210.77.64.217/handle/362003/1538]  |
| 专题 | 兰州化学物理研究所_中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室 |
| 通讯作者 | Jiang SX(蒋生祥); Jiang SX(蒋生祥) |
| 推荐引用方式 GB/T 7714 | Liu X,Ren HX,Jiang SX,et al. Determination of four trace preservatives in street food by ionic liquid-based dispersive liquid–liquid micro-extraction[J]. Chem. Pap.,2011,65(6):747-753. |
| APA | 刘霞,任海霞,蒋生祥,蒋生祥,&邱洪灯.(2011).Determination of four trace preservatives in street food by ionic liquid-based dispersive liquid–liquid micro-extraction.Chem. Pap.,65(6),747-753. |
| MLA | 刘霞,et al."Determination of four trace preservatives in street food by ionic liquid-based dispersive liquid–liquid micro-extraction".Chem. Pap. 65.6(2011):747-753. |
入库方式： OAI收割
来源：兰州化学物理研究所
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