A5063384125- Pesticide Residue Analysis and Safety
- Pesticide and Herbicide Environmental Studies
- Analytical chemistry methods development
- Plant Surface Properties and Treatments
- Pesticide Exposure and Toxicity
- Antibiotics Pharmacokinetics and Efficacy
- Insect Resistance and Genetics
- Forest Insect Ecology and Management
- Insect Pest Control Strategies
- Pharmacological Effects and Assays
- Ginseng Biological Effects and Applications
- Weed Control and Herbicide Applications
- Physiological and biochemical adaptations
- Metabolomics and Mass Spectrometry Studies
- Natural product bioactivities and synthesis
- Adipose Tissue and Metabolism
- Insect Pheromone Research and Control
- Insect and Pesticide Research
- Pharmacological Effects of Natural Compounds
National Institute of Agricultural Science and Technology
2023
Seoul National University
2021
Abstract This study aimed to investigate the residual characteristics of pesticides drifted by unmanned aerial spray according buffer strip, windbreak, and morphological non-target crops, suggest prevention for drift reduction, finally conduct a risk analysis on exceeding maximum residue limit (MRL) or uniform level (0.01 mg/kg) positive list system (PLS). Non-target crops were collected around sprayed area (paddy rice) in Boryeong, Seocheon, Pyeongtaek after UAV spray. When detected more...
Since the introduction of positive list system (PLS) for agricultural products in Republic Korea, demand a quick, easy multi-residue analysis method increased continuously. Herein, easy, cheap, effective, rugged, and safe (QuEChERS) technique combined with liquid chromatography−tandem mass spectrometry was employed to optimize 287 pesticide residues mandarin orange grapefruit. Method validation conducted terms selectivity, limit quantitation (LOQ), linearity, accuracy, precision, matrix...
Abstract A quantitative analysis of ginsenoside is very important for ginseng studies because each shows different medical activity and metabolic pathway. In this study, a rapid, simultaneous, 26 ginsenosides (Rb1, Rb2, Rc, Rd, Re, Rf, Rg1, Rg2(R), Rg2(S), Rg3(S), Rg3(R), Rg5, Rg6, Rh1(R), Rh1(S), Rh2(R), Rh2(S), F1, F2, F3, F4, K, Mc, PPT(S), XVII, Y) in white, red Panax was established using multiple reaction monitoring (MRM) mode on ultra-high-performance liquid chromatography-tandem mass...
Abstract The dissipation of ethoprophos and tricyclazole in soil their translocation tendency to spinach were investigated. Prior field trials, the analytical method for determination these pesticide residues was optimized validated on spinach. trial conducted under greenhouse conditions two different pretreatment periods with pesticides. After treating pesticides 30 (PBI-30) 60 days (PBI-60) before seeding, samples collected study soil. Spinach harvested from soil, 50% 100% mature...
Abstract Lindane is a broad-spectrum persistent organochlorine pesticide that has been used to control pests for many years. In this study, its toxic mechanisms in adult zebrafish were investigated using targeted metabolomics with GC-MS/MS and non-targeted LC-Orbitrap-MS/MS. Zebrafish was exposed lindane water 48 h three groups: control, low exposure (1/10 LC 50 ) high (LC ). the concentration of lindane, 2.24–3.98 mg/kg determined, while 35.67–56.46 observed concentration. A total 118...
This study investigated the effect of milling on yields incurred residues extracted from cereals. Rice, wheat, barley, and oat were soaked in nine pesticides (acetamiprid, azoxystrobin, imidacloprid, ferimzone, etofenprox, tebufenozide, clothianidin, hexaconazole, indoxacarb), dried, milled, passed through sieves various sizes. The quick, easy, cheap, effective, rugged, safe method liquid chromatography–tandem mass spectrometry quantified pesticides, respectively. For rice oat, higher for...
The significance of sample grinding is frequently disregarded during the development analytical methods, which are often validated with spiked samples that may not accurately reflect incurred residues. This study investigated particle size ground beans as a key factor in optimizing extraction efficiency order to develop simple quick, easy, cheap, effective, rugged, and safe (QuEChERS)-based modified method for identifying 380 pesticides using liquid chromatography-tandem mass spectrometry....