Method development for the analysis of phthalate esters in tea beverages by ionic liquid hollow fibre liquid-phase microextraction and liquid chromatographic detection
Method development for the analysis of phthalate esters in tea beverages by ionic liquid hollow fibre liquid-phase microextraction and liquid chromatographic detection
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离子液体中空纤维液相微萃取液相色谱检测分析茶饮料中邻苯二甲酸酯类化合物的方法开发
DOI：
10.1016/j.foodcont.2016.03.015
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发表时间：
2016-09-01
期刊：
影响因子：
6
通讯作者：
Yang, Yaling
中科院分区：
文献类型：
--
作者：
Wang, Juan;Huang, Shansong;Yang, Yaling
建立了离子液体基中空纤维液相微萃取（IL-HF-PLME）与高效液相色谱（HPLC）相结合的方法，对茶饮料中3种邻苯二甲酸酯（PAEs）进行分离和预富集。本研究将离子液体1-丁基-3-甲基-咪唑六氟磷酸（[BMIm]PF6）作为受体相置于多孔壁聚丙烯中空纤维中，以壬醇为支撑液膜相完成萃取。对影响萃取效率的几个重要参数进行了详细研究。在优化条件下，在5 ~ 1000 ng mL（-1）范围内线性良好，相关系数均在0.998以上。检出限为0.67 ~ 1.73 ng mL（-1）。两种加标茶饮料样品（PAEs, 10.0 ~ 100.0 ng mL）中3种PAEs的加标回收率为94.2 ~ 103.4%，相对标准偏差（rsd）为1.77 ~ 3.02%。富集因子为200。所建立的IL-HF-PLME方法可简便、快速、灵敏地测定茶饮料样品中的邻苯二甲酸酯，提取时间仅需4 min。(C) 2016 Elsevier Ltd.版权所有。
A novel method, termed ionic liquid-based hollow fibre liquid phase microextraction (IL-HF-PLME), coupled with high-performance liquid chromatography (HPLC) was developed for separation and pre concentration of three phthalate esters (PAEs) in tea beverage. In the present study, ionic liquid 1-butyl-3-methy-limidazolium hexafluorophosphate ([BMIm]PF6) was placed in the porous-walled polypropylene hollow fibre as the acceptor phase, and nonanol was used as the supported liquid membrane phase that accomplished extraction. Several important parameters influencing the extraction efficiency were investigated in detail. Under the optimized conditions, good linearity occurred in the range of 5 -1000 ng mL(-1) with the correlation coefficients values above 0.998. The limits of detection ranged from 0.67 to 1.73 ng mL(-1). Recoveries of three PAEs in two kinds of spiked tea beverage samples (PAEs, 10.0 -100.0 ng mL) were between 94.2 and 103.4%, with relative standard deviations (RSDs) ranged from 1.77 to 3.02%. The enrichment factors were 200. The developed IL-HF-PLME method allowed the simple, rapid, and sensitive determination of phthalate esters in tea beverage samples with an extraction time of just 4 min. (C) 2016 Elsevier Ltd. All rights reserved.