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Pyridine ionic liquid functionalized bimetallic MOF solid-phase extraction coupled with high performance liquid
Jun Wu1, Shuyu Wan1, Ouwen Xu1
1College of Chemistry and Chemical Engineering, College of Guangling, Yangzhou University Yangzhou 225002 China xszhu@yzu.edu.cn +86-514-87975244 +86-514-87975244.
Abstract:
An effective method based on the pyridine ionic liquid functionalized bimetallic MOF solid-phase extractant (Cu/Co-MOF@[PrPy][Br]) coupled with high performance liquid chromatography (HPLC) for the separation/analysis sunset yellow was established. Cu/Co-MOF@[PrPy][Br] was characterized by FTIR, XRD, SEM and TEM. Several important factors, such as pH, amount of extractant, extract time, and types of eluents were investigated in detail. Under the optimal conditions, linear range of the method was 0.05-40.00 μg mL-1, the detection limit was 0.02 μg mL-1, and the linear correlation was good (R 2 = 0.9992). The analysis of sunset yellow in soda, effervescent tablet and jelly proved that the method was simple and effective.
