A5077257083- Pesticide Residue Analysis and Safety
- Gold and Silver Nanoparticles Synthesis and Applications
- Analytical chemistry methods development
- Catalytic C–H Functionalization Methods
- Pesticide Exposure and Toxicity
- Synthesis and Catalytic Reactions
- Mesoporous Materials and Catalysis
- Analytical Methods in Pharmaceuticals
- Mass Spectrometry Techniques and Applications
- Insect and Pesticide Research
- Pickering emulsions and particle stabilization
- Nanomaterials for catalytic reactions
- Advanced biosensing and bioanalysis techniques
- Cyclopropane Reaction Mechanisms
- Electrochemical Analysis and Applications
- Chemical Synthesis and Characterization
- Quantum Dots Synthesis And Properties
- Catalytic Cross-Coupling Reactions
- Catalytic Processes in Materials Science
- Sulfur-Based Synthesis Techniques
- Analytical Chemistry and Sensors
- Aerogels and thermal insulation
- Iron oxide chemistry and applications
Ministry of Agriculture and Rural Affairs
2022-2024
Shanghai Institute of Quality Inspection and Technical Research
2022
Chinese Academy of Medical Sciences & Peking Union Medical College
2020-2021
Changsha University of Science and Technology
2018
Changsha University
2018
Wuhan Institute of Technology
2009-2010
Shanghai as an international metropolis is representative of modern urban agriculture in China, so it great significance to analyse the pesticide residue vegetables grown Shanghai. This study investigated 68 commonly used pesticides (divided into insecticides, fungicides, herbicides and plant growth regulators) 7028 vegetable samples from 2018 2021, estimated dietary intake risk these pesticides. These were divided 6 categories. A total 29.21% had residues, 0.47% exceeded maximum limits...
A ruthenium-catalyzed sulfonamide-directed ortho aryl C-H alkenylation/annulation to afford five-membered sultam by using of molecular oxygen as an oxidant is reported in this article. Compared the previous transition-metal-catalyzed alkenylation sulfonamides, no excess metal salt was required method. wide sulfonamide substrates scope and good regioselectivity site-selectivity make Ru-catalyzed method more attractive. Importantly, can not only be used effectively prepare biologically active...
A rapid surface-enhanced Raman scattering (SERS) method for Pb2+ detection has been developed based on l-cysteine-modified Ag-coated Au nanoparticles with core-shell nanostructure. Specifically, l-cysteine-functionalized Au@Ag probes bearing Raman-labeling molecules (4-ATP) are used to detect upon the formation of nanoparticle aggregates. The proposed SERS-based shows a linear range between 5 pM and 10 nM, an unprecedented limit (LOD) 1 Pb2+; this LOD be few orders magnitude more sensitive...
A novel rapid and cost-effective pre-processing method for the simultaneous determination of pyrethroid pesticides in vegetables has been developed validated. The process pesticide extraction was carried out by QuEChERS (quick, easy, cheap, effective, rugged safe) combined with filtration filter paper, cleanup multi-plug-filtration-cleanup (m-PFC) no centrifuge program during whole process. is optimized gas chromatography (GC). convenient time saving, requiring just a few seconds per sample....
Herein, a universal surface-enhanced Raman scattering (SERS) detection platform based on enzyme-guided crystal growth has been fabricated for the first time.
This work describes an effective Cp*RhIII-catalyzed C–H carbenoid functionalization of N-sulfonylarylamides. Compared to the previous late-stage modification methods N-sulfonylarylamide analogues, this method efficiently achieves gram-scale transformation with 2.5 mol % Rh-catalyst loading at 0 °C or a 0.1 room temperature. The reaction medium has great influence on rate. Methanol is optimal, and adding nonpolar solvent (such as toluene 1,2-dichloroethane) causes rate decrease. Experiments...
Materials with defined porous structures have drawn considerate attention for decades. Most of these materials display similar structure within the entity. Sometimes different surface and internal would be appreciated. In present study, a microporous silica material macroporous arrays was prepared by sol-gel technique combined template method. The sol via hydrolysis tetraethoxylsilane hydrochloric acid. To this sol, monodispersed, hydrophobic polystyrene spheres were added. By...