Pyridine Ionic Liquid Functionalized MOF-5 Coupled with High-Performance Liquid Chromatography for Analysis of Allura Red in Food Samples

2021 ◽  
Author(s):  
Shuyu Wan ◽  
Ouwen Xu ◽  
Yuheng Zhang ◽  
Jiawei Li ◽  
Yongxuan Shen ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Food Samples ◽  
Allura Red

scholarly journals Determination of Sunset Yellow and Tartrazine in Food Samples by Combining Ionic Liquid-Based Aqueous Two-Phase System with High Performance Liquid Chromatography

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Ou Sha ◽  
Xiashi Zhu ◽  
Yanli Feng ◽  
Weixing Ma
Keyword(s):  
Ionic Liquid ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Soft Drink ◽  
Food Samples ◽  
National Standard ◽  
Phase System ◽  
Sunset Yellow ◽  
Two Phase

We proposed a simple and effective method, by coupling ionic liquid-based aqueous two-phase systems (IL-ATPSs) with high performance liquid chromatography (HPLC), for the analysis of determining tartrazine and sunset yellow in food samples. Under the optimized conditions, IL-ATPSs generated an extraction efficiency of 99% for both analytes, which could then be directly analyzed by HPLC without further treatment. Calibration plots were linear in the range of 0.01–50.0 μg/mL for both Ta and SY. The limits of detection were 5.2 ng/mL for Ta and 6.9 ng/mL for SY. This method proves successful for the separation/analysis of tartrazine and sunset yellow in soft drink sample, candy sample, and instant powder drink and leads to consistent results as obtained from the Chinese national standard method.

Preparation of a porous polymer monolithic column with an ionic liquid as a porogen and its applications for the separation of small molecules in high performance liquid chromatography

2015 ◽  
Vol 7 (18) ◽  
pp. 7879-7888 ◽  
Author(s):  
Jiafei Wang ◽  
Xiaoya Jiang ◽  
Hang Zhang ◽  
Sha Liu ◽  
Ligai Bai ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Small Molecules ◽  
Small Molecule ◽  
High Performance ◽  
Monolithic Column ◽  
Porous Polymer ◽  
Column Efficiency ◽  
Polymer Monolithic Column

A monolith based on an ionic liquid as a porogen was prepared to enhance the column efficiency of small molecule separation in HPLC.

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