Multiple functional ionic liquids based dispersive liquid-liquid microextraction combined with high performance chromatography for the determination of phenolic compounds in water samples | |
Sun JN(孙建楠)1,2; Chen J(陈娟)1; Shi YP(师彦平)1 | |
刊名 | Talanta |
2014 | |
卷号 | 125页码:329-335 |
关键词 | Hydrophilic ionic liquid Dispersive liquid-liquid microextraction HPLC Phenolic compound Environmental water samples |
ISSN号 | 0039-9140 |
通讯作者 | 陈娟 ; 师彦平 |
英文摘要 | A new mode of ionic liquid based dispersive liquid–liquid microextraction (IL-DLLME) is developed. In this work, [C6MIm][PF6] was chosen as the extraction solvent, and two kinds of hydrophilic ionic liquids, [EMIm][BF4] and [BSO3HMIm][OTf], functioned as the dispersive solvent. So in the whole extraction procedure, no organic solvent was used. With the aid of SO3H group, the acidic compound was extracted from the sample solution without pH adjustment. Two phenolic compounds, namely, 2-naphthol and 4-nitrophenol were chosen as the target analytes. Important parameters affecting the extraction efficiency, such as the type of hydrophilic ionic liquids, the volume ratio of [EMIm][BF4] to [BSO3HMIm][OTf], type and volume of extraction solvent, pH value of sample solution, sonication time, extraction time and centrifugation time were investigated and optimized. Under the optimized extraction conditions, the method exhibited good sensitivity with the limits of detection (LODs) at 5.5 μg L_1and 10.0 μg L_1 for 4-nitrophenol and 2-naphthol, respectively. Good linearity over the concentration ranges of 24–384 μg L_1 for 4-nitrophenol and 28–336 μg L_1 for 2-naphthol was obtained with correlation coefficients of 0.9998 and 0.9961, respectively. The proposed method can directly extract acidic compound from environmental sample or even more complex sample matrix without any pH adjustment procedure. |
学科主题 | 分析化学与药物化学 |
收录类别 | SCI |
资助信息 | the National Nature Science Foundation of China (Nos. 21105106;21375136);Natural Science Foundation of Gansu Province (No.1107RJZA146) |
语种 | 英语 |
WOS记录号 | WOS:000336872200046 |
公开日期 | 2014-12-11 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/6932] |
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 |
作者单位 | 1.Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People׳s Republic of China 2.Graduate University of Chinese Academy of Sciences, Beijing 100039, People׳s Republic of China |
推荐引用方式 GB/T 7714 | Sun JN,Chen J,Shi YP. Multiple functional ionic liquids based dispersive liquid-liquid microextraction combined with high performance chromatography for the determination of phenolic compounds in water samples[J]. Talanta,2014,125:329-335. |
APA | Sun JN,Chen J,&Shi YP.(2014).Multiple functional ionic liquids based dispersive liquid-liquid microextraction combined with high performance chromatography for the determination of phenolic compounds in water samples.Talanta,125,329-335. |
MLA | Sun JN,et al."Multiple functional ionic liquids based dispersive liquid-liquid microextraction combined with high performance chromatography for the determination of phenolic compounds in water samples".Talanta 125(2014):329-335. |
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