A5103098898- Insect and Pesticide Research
- Pesticide Residue Analysis and Safety
- Environmental Toxicology and Ecotoxicology
- Carcinogens and Genotoxicity Assessment
- Analytical Chemistry and Chromatography
- Mosquito-borne diseases and control
- Physiological and biochemical adaptations
- Recycling and Waste Management Techniques
- NMR spectroscopy and applications
- Trace Elements in Health
- Microplastics and Plastic Pollution
- Mass Spectrometry Techniques and Applications
- Mercury impact and mitigation studies
- Effects and risks of endocrine disrupting chemicals
- Selenium in Biological Systems
- Spectroscopy and Chemometric Analyses
- Advanced Chemical Sensor Technologies
- Insect Pheromone Research and Control
- RNA Interference and Gene Delivery
- Pharmacological Effects and Assays
- Hormonal and reproductive studies
- Analytical chemistry methods development
- Pesticide and Herbicide Environmental Studies
- Advanced Drug Delivery Systems
- Nanoparticle-Based Drug Delivery
National Institute of Metrology
2019-2024
Guizhou University
2021-2023
Beijing Chaoyang Emergency Medical Center
2022
China Pharmaceutical University
2008
Metconazole (MEZ) is widely used in prevention and control of fruit vegetable diseases. Here, a simple reliable gas chromatography–tandem mass spectrometry (GC-MS/MS) method, using modified QuEChERS (“quick, easy, cheap, effective, rugged safe”) extraction was developed for determining the dissipation residue MEZ grapes soil, dietary risk residues evaluated Chinese people. The average recoveries two matrices were 80.72–100.36% with relative standard deviations 1.56–6.16%. same limits...
Sulfoxaflor is a promising neonicotinoid. However, the negative implications of sulfoxaflor on nontarget aquatic organisms have been rarely studied. In this study, risks and its main metabolites X11719474 X11519540 Daphnia magna were characterized, including acute toxicity, reproduction, swimming behavior, biochemical markers, gene transcription. Acute toxicity measurements indicated that high than parent compound sulfoxaflor. Chronic exposure reduced reproduction delayed birth firstborn D....
Quantitative nuclear magnetic resonance (qNMR), as a primary approach used to characterize SI (International System of Units)-traceable organic compounds, is based on the proportionality intensities from analyte and standard, which implies fundamental requirement that peaks be for quantitation are isolated impurities. Therefore, sufficient dispersion or data analysis method has enable isolation This technique offers many metrological advantages, though significant challenges associated with...
A sensitive and specific liquid chromatography-electrospray ionization mass spectrometry method is developed validated for the identification quantitation of azithromycin in human plasma. After addition internal standard 1.0M sodium hydroxide solution, plasma samples are extracted with a methylene chloride-ethyl acetate mixture (20:80, v/v). The organic layer evaporated under stream nitrogen at 40°C. residue reconstituted 200 µL mobile phase. compounds separated on prepacked Shimadzu...
Liquid chromatography-tandem mass spectrometry (LC-MS/MS) is the most commonly used method for sulfonamide determination. Its accuracy, however, can be affected by many factors. In this study, sulfadiazine (SDZ), sulfadimidine (SMZ), and sulfadimethoxine (SDM) in milk were selected to investigate an accurate determination potential influencing factors use of ultrahigh-performance liquid (UHPLC-MS/MS). Milk samples extracted 25 mL perchloric acid solution (pH = 2) cleaned up using HLB...