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Multi-magnetic center ionic liquids for dispersive liquid-liquid microextraction coupled with in-situ decomposition based back-extraction for the enrichment of parabens in beverage samples
被引:16
作者:

Qiao, Lizhen
论文数: 0 引用数: 0
h-index: 0
机构:
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116023, Peoples R China
Dalian Univ Technol, Sch Chem Engn, Panjin 124221, Peoples R China
Dalian Univ Technol, Sch Chem Engn, 2 Dagong Rd,New Dist Liaodong Bay, Panjin 124221, Peoples R China Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116023, Peoples R China

Tao, Yuan
论文数: 0 引用数: 0
h-index: 0
机构:
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116023, Peoples R China
Dalian Univ Technol, Sch Chem Engn, Panjin 124221, Peoples R China Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116023, Peoples R China

Qin, Honglin
论文数: 0 引用数: 0
h-index: 0
机构:
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116023, Peoples R China
Dalian Univ Technol, Sch Chem Engn, Panjin 124221, Peoples R China Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116023, Peoples R China

Niu, Ruiting
论文数: 0 引用数: 0
h-index: 0
机构:
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116023, Peoples R China
Dalian Univ Technol, Sch Chem Engn, Panjin 124221, Peoples R China Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116023, Peoples R China
机构:
[1] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116023, Peoples R China
[2] Dalian Univ Technol, Sch Chem Engn, Panjin 124221, Peoples R China
[3] Dalian Univ Technol, Sch Chem Engn, 2 Dagong Rd,New Dist Liaodong Bay, Panjin 124221, Peoples R China
关键词:
Dispersive liquid-liquid extraction;
Multi-magnetic center magnetic ionic liquids;
Back-extraction;
Parabens;
SOLID-PHASE;
WATER;
CHROMATOGRAPHY;
D O I:
10.1016/j.chroma.2022.463771
中图分类号:
Q5 [生物化学];
学科分类号:
071010 ;
081704 ;
摘要:
In this paper, several new multi-magnetic center magnetic ionic liquids (MMILs) were prepared with paramagnetic component simultaneously contained in both the cation and anion and used as extractants to establish a dispersive liquid-liquid microextraction (DLLME) approach followed by in-situ MMIL de-composition based back-extraction for the enrichment and determination of four parabens in beverages. The appropriate MMIL was selected by investigating the extraction performances of the obtained MMILs combined with high performance liquid chromatography-ultraviolet detection (HPLC-UV), and some other experimental factors were explored. Under the optimized DLLME conditions, the four parabens exhibited coefficients of determination (R2) above 0.9987 in the linear range of 0.1-500 ng.L-1 for ethylparaben, propylparaben and butylparaben and 0.2-500 ng.L-1 for methylparaben. The limits of detection (LODs) and limits of quantification (LOQs) were respectively within 0.03-0.06 ng.L-1 and 0.1-0.2 ng.L-1, and the relative standard deviations (RSDs) for intra-day and inter-day precision were below 10.8%. Moreover, the application of the developed MMIL-based DLLME method in beverage samples exhibited recoveries within 81.3%-112.1% with RSDs of 0.3%-13.1% at three different spiked levels. (c) n2022 Elsevier B.V. All rights reserved.
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