Preparation of metal-organic framework MIL-101(Cr) incorporated polymer monolithic column for on-line solid-phase extraction of phenols

doi:10.3724/SP.J.1123.2019.01023

Abstract

Abstract: A metal-organic framework (MOF) MIL-101(Cr) incorporated polymer monolithic column was prepared, and a method was developed for the determination of 4-nitrophenol, 3-methylphenol, 2-nitrophenol and 2,4-dichlorophenol in water samples by on-line solid phase extraction (SPE) coupled with high performance liquid chromatography (HPLC). Effects of sample solution pH values, sample loading time, sample loading flow rates and desorption time on the on-line SPE of phenols were investigated. Under the optimized extraction conditions, large enhancement factors, wide linearity range, good precisions and low limits of detection were achieved. The results showed that the incorporation of MOFs in porous polymer monolith to fabricate MOF-incorporated monolith is one of the best ways to promote and expand the application of MOFs in on-line SPE.

Key words: metal-organic frameworks (MOFs), monolithic column, on-line solid phase extraction (on-line SPE), phenols

CLC Number:

O658

YANG Chengxiong, YANG Xueqing, YAN Xiuping. Preparation of metal-organic framework MIL-101(Cr) incorporated polymer monolithic column for on-line solid-phase extraction of phenols[J]. Chinese Journal of Chromatography, 2019, 37(8): 824-830.

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