Pillarene functionalized polymer monolithic column for the solid-phase microextraction preconcentration of parabens

RSC Advances ◽  
2014 ◽  
Vol 4 (90) ◽  
pp. 49153-49160 ◽  
Author(s):  
Dan Liu ◽  
Nan Song ◽  
Ye-Chun Cheng ◽  
Dai-Xiong Chen ◽  
Qiong Jia ◽  
...  
Keyword(s):  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Monolithic Column ◽  
Polymer Monolithic Column

scholarly journals NH2-MIL-53(Al) Polymer Monolithic Column for In-Tube Solid-Phase Microextraction Combined with UHPLC-MS/MS for Detection of Trace Sulfonamides in Food Samples

Molecules ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 897 ◽  
Author(s):  
Qian-Chun Zhang ◽  
Guang-Ping Xia ◽  
Jun-Yi Liang ◽  
Xiao-Lan Zhang ◽  
Li Jiang ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Solid Phase Microextraction ◽  
In Situ Polymerization ◽  
Solid Phase ◽  
Monolithic Column ◽  
Metal Organic Framework ◽  
Food Samples ◽  
X Ray ◽  
Polymer Monolithic Column ◽  
Relative Standard

In this study, a novel monolithic capillary column based on a NH2-MIL-53(Al) metal–organic framework (MOF) incorporated in poly (3-acrylamidophenylboronic acid/methacrylic acid-co-ethylene glycol dimethacrylate) (poly (AAPBA/MAA-co-EGDMA)) was prepared using an in situ polymerization method. The characteristics of the MOF-polymer monolithic column were investigated by scanning electron microscopy, Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffractometry, Brunauer-Emmett-Teller analysis, and thermogravimetric analysis. The prepared MOF-polymer monolithic column showed good permeability, high extraction efficiency, chemical stability, and good reproducibility. The MOF-polymer monolithic column was used for in-tube solid-phase microextraction (SPME) to efficiently adsorb trace sulfonamides from food samples. A novel method combining MOF-polymer-monolithic-column-based SPME with ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) was successfully developed. The linear range was from 0.015 to 25.0 µg/L, with low limits of detection of 1.3–4.7 ng/L and relative standard deviations (RSDs) of < 6.1%. Eight trace sulfonamides in fish and chicken samples were determined, with recoveries of the eight analytes ranging from 85.7% to 113% and acceptable RSDs of < 7.3%. These results demonstrate that the novel MOF-polymer-monolithic-column-based SPME coupled with UHPLC-MS/MS is a highly sensitive, practical, and convenient method for monitoring trace sulfonamides in food samples previously extracted with an adequate solvent.

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