Results 11 to 20 of about 122,836 (296)

Determination of Modified QuEChERS Method for Chlorothalonil Analysis in Agricultural Products Using Gas Chromatography–Mass Spectrometry (GC-MS/MS)

Foods, 2023
Chlorothalonil is an organochlorine fungicide that blocks the respiratory process of cells and persists in agricultural products because it is used extensively to prevent fungal diseases. An analytical method of chlorothalonil using the modified QuEChERS
Da-Young Yun, Ji-Yeon Bae, Chan-Woong Park, Gui-Hyun Jang, Won-Jo Choe   +4 more
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Residue behavior and dietary risk assessment of six pesticides in pak choi using QuEChERS method coupled with UPLC-MS/MS

Ecotoxicology and Environmental Safety, 2021
A reliable and simple modified QuEChERS method with UPLC-MS/MS was developed for the simultaneous determination of six pesticides (dimethomorph, imidaclothiz, lufenuron, methoxyfenozide, pyridaben, spinetoram) and their metabolites in pak choi.
Hongxia Tang, Lin Ma, Jiaqing Huang, Yubo Li, Zehui Liu, Dianying Meng, Guangyue Wen, Maofeng Dong, Weimin Wang, Li Zhao   +9 more
doaj   +1 more source

Comparison of Sample Preparation and Determination of 60 Veterinary Drug Residues in Flatfish Using Liquid Chromatography-Tandem Mass Spectrometry

Molecules, 2020
This study was performed to optimize the analytical method for multi-residues of 60 compounds in flatfish samples. Three sample preparation methods were tested to identify the optimal recovery conditions for target analytes.
Joohye Kim, Hyunjin Park, Hui-Seung Kang, Byung-Hoon Cho, Jae-Ho Oh   +4 more
doaj   +1 more source

Low-dose cadmium affects the enantioselective bioaccumulation and dissipation of chiral penflufen in zebrafish (Danio rerio)

Ecotoxicology and Environmental Safety, 2022
Pesticides are currently extensively used in agriculture, forestry, animal husbandry, and environmental hygiene, and their residues have become a global environmental problem, which can easily form combined pollution with heavy metals.
Shanshan Di, Huiyu Zhao, Zhenzhen Liu, Tao Cang, Zhiwei Wang, Peipei Qi, Xiangyun Wang, Hao Xu, Xinquan Wang   +8 more
doaj   +1 more source

Combined toxicities of cadmium and five agrochemicals to the larval zebrafish (Danio rerio)

Scientific Reports, 2022
Different pollutants usually co-exist in the natural environment, and the ecological and health risk assessment of agrochemicals needs to be carried out based on the combined toxicological effects of pollutants.
Guixian Hu, Hao Wang, Yujie Wan, Liangliang Zhou, Qiang Wang, Minghua Wang   +5 more
doaj   +1 more source

Enantioselective toxicity and mechanism of chiral fungicide penflufen based on experiments and computational chemistry

Ecotoxicology and Environmental Safety, 2021
Penflufen fungicide is widely used as a racemate, which has potential ecological risks to aquatic organisms, while its enantioselective toxicity data is limited.
Shanshan Di, Zhiwei Wang, Tao Cang, Yunye Xie, Huiyu Zhao, Peipei Qi, Xiangyun Wang, Hao Xu, Xinquan Wang   +8 more
doaj   +1 more source

Comprehensive evaluation of chiral penflufen metabolite (penflufen-3-hydroxy-butyl): Identification, synthesis, enantioseparation, toxicity and enantioselective metabolism

Ecotoxicology and Environmental Safety, 2023
Identification and evaluations of pesticide metabolites are necessary for risk assessment and toxicological research. In this study, the metabolites of penflufen (a widely used chiral pesticide) in rat liver microsomes were identified using liquid ...
Shanshan Di, Ruiquan Liu, Zhenzhen Liu, Hao Xu, Huiyu Zhao, Yuele Lu, Peipei Qi, Zhiwei Wang, Xinquan Wang   +8 more
doaj   +1 more source

Chiral perspective evaluations: Enantioselective hydrolysis of 6PPD and 6PPD-quinone in water and enantioselective toxicity to Gobiocypris rarus and Oncorhynchus mykiss

Environment International, 2022
As a ubiquitous tire antidegradant, N-(1,3-dimethylbutyl)-N’-phenyl-p-phenylenediamine (6PPD) is persistently released into the environment. It is highly toxic to aquatic organisms, and its transformation product 6PPD-quinone (6PPD-Q), is “very highly ...
Shanshan Di, Zhenzhen Liu, Huiyu Zhao, Ying Li, Peipei Qi, Zhiwei Wang, Hao Xu, Yuanxiang Jin, Xinquan Wang   +8 more
doaj   +1 more source

Comparison of water-sensitive paper, Kromekote and Mylar collectors for droplet deposition with a visible fluorescent dye solution

Journal of Plant Protection Research, 2020
The study was conducted at the University of Nebraska Pesticide Application and Technology Laboratory in North Platte, Nebraska in July 2015. Two application volume rates (100 and 200 l · ha−1) and three nozzle types (XR, AIXR, TTI) were selected at ...
J. Connor Ferguson, Andrew J. Hewitt, Chris C. O’Donnell, Greg R. Kruger   +3 more
doaj   +1 more source

Risk-based approach to develop a national residue program: prioritizing the residue control of veterinary drugs in fishery products

Fisheries and Aquatic Sciences, 2019
Veterinary drugs are widely used to protect production-related diseases and promote the growth of farmed fish. The use of large amounts of veterinary drugs may have potential risk and cause adverse effects on both humans and the environment.
Hui-Seung Kang, Songyi Han, Byung-Hoon Cho, Hunjoo Lee   +3 more
doaj   +1 more source