Novel nanohybrids for effervescence enhanced magnetic solid‐phase microextraction of wide‐polarity organic pollutants in roasted meat samples

Abstract

To simultaneously and efficiently extract pollutants with differential polarities, we herein fabricated and characterized a multifunctional nanocomposite. The novel nanohybrids used NiFe2O4 as magnetic cores, and NH2‐MIL‐101(Al), β‐cyclodextrin and graphene oxide as functional components combined with magnetic cores. With the aid of graphene oxide's large π‐conjugated system, NH2‐MIL‐101(Al)’s strong adsorption to moderately/strongly polar chemicals, and β‐cyclodextrin's specific recognition effect, the nanohybrids realized synergistically efficient extraction of polyaromatic hydrocarbons and bisphenols with a logKow range of 3–6. Combined with acidic and alkaline sources, the nanohybrids‐based effervescent tablets were prepared. Based on effervescent reaction‐enhanced nanohybrids‐based efficient adsorption/extraction and high performance liquid chromatography and fluorescence detection, we successfully developed an excellent microextraction method for the simultaneous determination of both polyaromatic hydrocarbons and bisphenols in roasted meat samples. Several important variables were optimized as follows: Na2CO3 and tartaric acid as acidic and alkaline sources, 900 μLof the mixed solvent (acetone and hexane at 2:1 by v/v) as the eluent, 5 min of elution time. Under optimized conditions, the novel method gave low limits of detection (0.07–0.30 μg kg−1), satisfactory recoveries (86.9–103.9%), and high precision (relative standard deviations of 1.9–6.7%) in roasted lamb, beef, pork, chicken, and sausage samples.

Latest Improvements and Expanding Applications of Solid-Phase Microextraction

“…After the food samples have been extracted by organic solvents and dispersed in water, the extraction procedures are similar to those in water samples. The hollow fiber solid-phase microextraction (HF-SPME) and DMSPME , are appropriate for the enrichment of target analytes, except for the widely used SPME fiber and IT-SPME. These extraction forms have demonstrated effective enrichment efficiencies toward organic analytes from diverse food samples.…”

Simple high‐performance liquid chromatography‐ultraviolet method for simultaneous separation and detection of 14 bisphenol pollutants in building materials

“…HPLC is one of the most widely used methods for detecting BPs [25–27], particularly when coupled with MS [28]. Li et al.…”

“…HPLC is one of the most widely used methods for detecting BPs [25][26][27], particularly when coupled with MS [28]. Li et al reported using β-cyclodextrin polymer as the sorbent for solid phase extraction, HPLC with an ultraviolet detector (UV) could achieve analysis of BPA, BPF, and BPAF in water samples and orange juice with limits of detection (LODs) of 0.15 ng/ml [29].…”

Enhanced adsorption/extraction of bisphenols by pyrrolic N-based 3D magnetic carbon nanocomposites for effervescence-assisted solid-phase microextraction of bisphenols from juices and the underlying interaction mechanisms

“…To date, several analytical approaches have been reported for BP quantification, such as solid-phase microextraction(SPME) [10], dispersive liquid-liquid microextraction (DLLME) [9,11], and effervescent tablet-assisted dispersive solid-phase microextraction (ET-DSM) [8,12,13]. The ET-DSM method incorporating an effervescent reaction, as pioneered by Lasarte-Aragones and coworkers, is often a preferred method owing to its convenient operation and remote/outdoor feasibility [13].…”

“…Additionally, the ET-DSM method integrates with magnetic recovery to construct the ET-MSPE procedure, which employs an external magnet to separate adsorbent/extractant after extraction to avoid extra steps such as centrifugation, further improving the efficiency of sample pretreatment. Given its operational efficiencies, ET-MSPE approaches have rapidly developed for the detection of trace pollutants, including pesticides [14,15], polycyclic aromatic hydrocarbons (PAHs) [16,17], and BPs [8,12].…”