Fabrication of boron‐rich multiple monolithic fibers for the solid‐phase microextraction of carbamate pesticide residues in complex samples

Abstract

To enrich carbamate pesticides from complex matrices, an adsorbent based on poly (vinylboronic anhydride pyridine complex‐co‐ethylenedimethacrylate) monolith was fabricated and utilized as the extraction phase of multiple monolithic fiber solid‐phase microextraction. Due to the abundant boron atoms in the monolith, the B–N coordination interaction between adsorbent and analytes play a key role in the efficient extraction of analytes. Under the optimized conditions, the monolithic fibers were combined with high‐performance liquid chromatography for the quantify trace levels of carbamate pesticides in environmental water and orange juice samples. For water sample, the limit of detection and limit of quantification were in the range of 0.017–0.29 and 0.057–0.96 μg/L, respectively. The related values in orange juice samples were 0.038–0.39 and 0.12–1.36 μg/kg, respectively. Besides, the proposed method also exhibits wide linearity, satisfactory coefficients of determination, and good precision. The introduced approach was successfully applied to determine trace target analytes in real‐life samples. The spiked recoveries with different fortified concentrations were in the range of 80.4–117% for water samples and 83.7–119% for fruit juice samples. The relative standard deviations were below 10%. The results evidence that the suggested method was convenient, reliable, and eco‐friendly for the monitoring of trace levels of carbamate pesticides in complex samples such as waters and juices.

Recent Applications and Newly Developed Strategies of Solid-Phase Microextraction in Contaminant Analysis: Through the Environment to Humans

“…These studies, in terms of numbers, are followed by works in which new strategies in using SPME are presented, e.g., new coupling with mass spectrometer equipment [27][28][29] or the development of a new mechanically robust SPME sampler for the on-site sampling [30]. The involved classes of molecules are various and include both pollutants traditionally investigated such as PAHs [19,[31][32][33][34][35][36][37][38][39][40][41] and polychlorinated biphenyls (PCBs) [33,[42][43][44][45], and new polluting molecules such as dyes [46], additives for materials [14], new pesticides [47][48][49][50][51][52][53], antibiotics [54][55][56][57], pollutants coming from a number of polluting processes including those in industries [58][59][60], and last but not least, ultraviolet filters, whose determination in natural water is one of the issues that is attracting greater interest [37,[61][62][63][64][65][66]...…”

An in‐needle solid‐phase microextraction device packed with etched steel wires for polycyclic aromatic hydrocarbons enrichment in water samples

“…SPME has attracted increasing interest in many fields because of its advantages of a short extraction time, small sample volume, and simplicity for the operator and ease of automation. Nowadays, SPME has been widely used in many different areas, such as environmental protection, food safety, medical analysis and health care [1][2][3][4][5]. The SPME technique is based on an equilibrium of the analytes in the matrix and extraction Article Related Abbreviations: FID, flame ionization detector; NT, needle trap; PAH, polycyclic aromatic hydrocarbon; SBSE, stir bar sorptive extraction; TFME, thin-film microextraction.…”