Metal Organic Framework-Based Dispersive Solid-Phase Microextraction of Carbaryl from Food and Water Prior to Detection by Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry

Abstract

In this work, metal organic frameworks (A100 Al-based MOFs) were used in dispersive solid-phase microextraction (DSPME) for the isolation and preconcentration of the carbaryl from vegetable, fruit and water samples. The A100 Al-based MOFs showed excellent behavior for the adsorption of carbaryl from a water–ethanol solution; additionally, carbaryl was easily desorbed with ethyl acetate for detection by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-TMS). The analytical process of DSPME together with UPLC-TMS provides the accurate monitoring of trace carbaryl residues. The results show that the optimal recovery% of carbaryl was obtained at a sample apparent pH of 5, with the application of 1 mL of ethyl acetate to elute the carbaryl from the A100 Al-based MOFs. The limit of detection (LOD) and the limit of quantification (LOQ) were 0.01 mg.L−1 and 0.03 mg.L−1, respectively. The RSD% was 0.8–1.9, and the preconcentration factor was 45. DSPME and UPLC-TMS were successfully used for the isolation and detection of carbaryl in food and water samples.

Food Quality and Safety: Advances in Analytical Methods and Applications

“…Ref. [53] reported the use of metal organic frameworks in dispersive solid-phase microextraction of carbaryl (a carcinogenic pesticide) in vegetable, fruit and water samples.…”

Pyridine ionic liquid functionalized bimetallic MOF solid-phase extraction coupled with high performance liquid chromatography for separation/analysis sunset yellow

“…Metal organic framework (MOF) is porous structures constructed from the coordinative bonding between organic linkers and metal ions. 20 It has unique pore space, large specific surface area. Functionalization of MOF means to change the properties of materials by replacing metal ions, 21 changing the organic ligands 22 and introducing other components 23 with MOF as the main body, so that the types of MOF are greatly enriched.…”

A porous Fe‐based porphyrinic metal–organic framework for highly effective removal of organic azo‐dye

“…[ 1,2 ] They have flexible structures, the high porosity and specific surface area, and are new emerging adsorbents with outstanding performance. [ 3–6 ] However, introduction and application of cathecolate‐based MOFs are quiet rare. [ 7–10 ]…”

“…[1,2] They have flexible structures, the high porosity and specific surface area, and are new emerging adsorbents with outstanding performance. [3][4][5][6] However, introduction and application of cathecolatebased MOFs are quiet rare. [7][8][9][10] Porphyrins are nitrogenous 18π aromatic macrocyclic compounds with excellent comprehensive activities in biological systems.…”