Application of the liquid-liquid dispersed microextraction based on phase transition behavior of temperature sensitive polymer to rapidly detect 5 BPs in food packaging.
Application of the liquid-liquid dispersed microextraction based on phase transition behavior of temperature sensitive polymer to rapidly detect 5 BPs in food packaging.
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DOI：
10.1016/j.foodchem.2020.128960
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发表时间：
2020-12
期刊：
影响因子：
8.8
通讯作者：
Yidong Xu;Liulin Wei;Xiaomei Chen;Jingchan Zhao;Yi Wang
中科院分区：
文献类型：
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作者：
Yidong Xu;Liulin Wei;Xiaomei Chen;Jingchan Zhao;Yi Wang
本文采用温敏聚合物p(MAH-β-Cd-co-NIPAM)作为萃取剂，利用Hofmeister效应和非共溶剂效应在室温下观察到其相变行为。整个前处理过程简单、快速，提取过程不需要分散剂辅助分散，也不需要离心收集吸附剂。建立了一种基于DLLME与高效液相色谱-紫外联用的分析方法，用于牛奶和外卖包装中5种苯系物的检测。方法的检出限为0.44~1.60ng.mL−-1(S/N=0.3)。食品包装中5个基点的相对回收率在91.08-108.04%之间。
In this paper, temperature sensitive polymer p(MAH-β-CD-co-NIPAM) was used as extraction in DLLME, because its phase transition behavior can be observed at room temperature due to Hofmeister and non-co-solvent effect. The whole pretreatment process is simple and fast, and the extraction process did not require dispersant to assist dispersion and centrifugation to collect the adsorbent. A new analytical method based on DLLME coupled with HPLC-UV was developed to detect five types of BPs in milk and take-out packaging. The limits of detection ranged from 0.44 to 1.60 ng mL−1(S/N = 3). The relative recoveries of 5 BPs in food packaging were in the range of 91.08–108.04%.