Determination of seven organophosphorus insecticides in fruits and vegetables by ultra-high performance liquid chromatography-tandem mass spectrometry based …

W Cai, H Lei, Y Hu, G Li - Se pu= Chinese Journal of …, 2020 - europepmc.org
A method was developed for the determination of seven organophosphorus insecticides in
fruits and vegetables by ultra-high performance liquid chromatography-tandem mass …

Magnetic poly (phenylene ethynylene) conjugated microporous polymer microspheres for bactericides enrichment and analysis by ultra-high performance liquid …

H Lei, Y Hu, G Li - Journal of Chromatography A, 2018 - Elsevier
The novel multifunction materials for bactericides residue enrichment is attractive. Few
materials used in bactericides analysis could simultaneously achieve convenient …

Eco-friendly thermosensitive magnetic-molecularly-imprinted polymer adsorbent in dispersive solid-phase microextraction for gas chromatographic determination of …

K Seebunrueng, S Tamuang, P Jarujamrus… - Food Chemistry, 2024 - Elsevier
A thermosensitive magnetic-molecularly-imprinted polymer (TMMIP) was successfully
prepared in an aqueous medium. The TMMIP was applied as an effective adsorbent in …

Dispersive microextraction based on magnetic polypyrrole nanowires for the fast determination of pesticide residues in beverage and environmental water samples

Q Zhao, Q Lu, YQ Feng - Analytical and bioanalytical chemistry, 2013 - Springer
In this study, magnetic polypyrrole nanowires (mPPYs) were fabricated via a simple co-
mixing method based on an “aggregation-wrap” mechanism. The polypyrrole (PPy) …

Application of MNPs/ODA-SBA-15 composites in pretreatment of organophosphorus pesticide residues in green leafy vegetables

C Yuan, L Wang, X Hong, Z Chen - Journal of Porous Materials, 2024 - Springer
The self-developed magnetic nanoparticles supported octadecane amine-functionalized
mesoporous carbon composite was synthesized in this work. A sample pretreatment method …

Simultaneous determination of ten organophosphate pesticide residues in fruits by gas chromatography coupled with magnetic separation

Q Tang, X Wang, F Yu, X Qiao… - Journal of separation …, 2014 - Wiley Online Library
In this study, γ‐Fe2O3/chitosan magnetic microspheres were synthesized and evaluated by
X‐ray diffraction, SEM, thermogravimetric analysis, and static and kinetic adsorption …

Green synthesis of novel magnetic porous organic polymer for magnetic solid phase extraction of neonicotinoids in lemon juice and honey samples

S Jiang, X Meng, M Xu, M Li, S Li, Q Wang, W Liu… - Food Chemistry, 2022 - Elsevier
Natural rutin with abundant hydroxyl groups was used as a green monomer to synthesize
hydroxyl-functional magnetic porous organic polymer (named Rut-MOP) through …

Magnetic porous organic polymers for magnetic solid-phase extraction of triazole fungicides in vegetables prior to their determination by gas chromatography-flame …

D Li, M He, B Chen, B Hu - Journal of Chromatography A, 2019 - Elsevier
Magnetic porous organic polymers (MOPs) were synthesized by a simple azo reaction, with
1, 3, 5-tris (4-aminophenoxy) benzene and 1, 3, 5-trihydroxybenzene as the monomers, and …

Preparation of a magnetic porous organic polymer for the efficient extraction of phenylurea herbicides

J Wang, M Li, C Jiao, Y Song, C Wang, Q Wu… - … of Chromatography A, 2017 - Elsevier
A magnetic porphyrin-based porous organic polymer (M-PPOP) with good porosity, high
surface area and strong magnetism was prepared and employed as the adsorbent for the …

Self-Assembled Three-Dimensional Microporous rGO/PNT/Fe3O4 Hydrogel Sorbent for Magnetic Preconcentration of Multi-Residue Insecticides

S Wang, X Li, M Li, X Li, X Li, S Li, Q Zhang, H Li - Applied Sciences, 2020 - mdpi.com
The purpose of this work was to develop a highly selective, sensitive, and reliable method
for multi-residual analysis. A three-dimensional microporous reduced graphene …