Results 11 to 20 of about 4,415 (184)

Residue dynamics and dietary risks of diflufenican and flufenacet in wheat using field experiments and model simulations. [PDF]

open access: yesPest Manag Sci
Combining field trials with model simulations allows for an effective and efficient evaluation of residues of herbicides diflufenican and flufenacet in wheat and related dietary risks for humans. Abstract BACKGROUND Pesticide usage and related food safety and human health concerns have received great attention worldwide.
Pang N   +7 more
europepmc   +2 more sources

Determination of 10 Tetracycline Antibiotics in Fruit Products and Meat Sauce by QuEChERS with Ultra Performance Liquid Chromatography-Triple Quadrupole Tandem Mass Spectrometry

open access: yesShipin gongye ke-ji, 2023
A method for the determination of 10 tetracycline antibiotics in fruit products and meat sauce was established by QuEChERS coupled with ultra performance liquid chromatography-triple quadrupole tandem mass spectrometry (UPLC-MS/MS).
Yue GU   +5 more
doaj   +1 more source

A comparison of the effectiveness of QuEChERS, FaPEx and a modified QuEChERS method on the determination of organochlorine pesticides in ginseng

open access: yesPLOS ONE, 2021
This study provides a review of methods used in the determination of organochlorine pesticides (OCPs) in ginseng and compares the effectiveness of three extraction methods (Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS), a modified QuEChERS and a Fast Pesticide Extraction (FaPEx)) in the analyses of 20 OCPs in ginseng root samples. For each
Pennante Bruce-Vanderpuije   +7 more
openaire   +5 more sources

Rapid Determination of Five Alkaloids in Catering Crayfish by QuEChERS-UPLC-MS/MS

open access: yesShipin gongye ke-ji, 2023
In this study, a method for the determination of morphine, codeine, nacodine, papaverine and tibain residues in catering crayfish by ultra-high-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) was established.
Ling YU, Lihua SONG
doaj   +1 more source

Determination of Thirty-five Veterinary Drug Residues in Black Chicken by Modified QuEChERS-Ultra High Performance Liquid Chromatography Tandem Mass Spectrometry [PDF]

open access: yesZhipu Xuebao, 2023
In this study, a modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method with using a reduced graphene oxide-modified melamine sponge (r-GO@MeS) as matrix purification material was developed for the determination of 35 veterinary drug ...
JI Bao-cheng;YANG Lan-rui;CHENG Ying-xin;HOU Zhu-chen;LV Jia;XU Xu;BAI Yan-hong
doaj   +1 more source

Simultaneous Determination of 46 Pesticide Residues in Tomatoes by QuEChERS Method Combined with Gas Chromatography-Mass Spectrometry

open access: yesShipin gongye ke-ji, 2023
An analysis method for simultaneous determination of 46 kinds of fungicides and insecticides residues in tomatoes by QuEChERS method combined with gas chromatography-mass spectrometry was established.
Xinhua XUE   +5 more
doaj   +1 more source

Residue Levels and Chronic Dietary Intake Risk of Pesticide Residues in Fruits and Vegetables in Chengdu

open access: yesShipin gongye ke-ji, 2022
To investigate the pesticide residues in fruits and vegetables and their dietary risk to Chengdu residents. A total of 203 samples of 9 kinds of fruits and vegetables were collected from large farmer markets and supermarkets in Chengdu.
Wei CHANG   +10 more
doaj   +1 more source

Verification of QuEChERS Method for the Analysis of Pesticide Residues and Their Risk Assessment in Some Fruits Grown in Tokat, Turkey

open access: yesJournal of Agricultural Sciences, 2023
This study sought to determine pesticide residues in some fruits in Tokat province, Turkey and to assess the health risks associated with the determined residues.
Kenan Kara   +2 more
doaj   +1 more source

QuEChERS as alternative extraction procedure in doping analyses

open access: yesDrug Testing and Analysis, 2023
AbstractQuEChERS is a dispersive solid phase extraction commonly applied in food analysis for residues, such as pesticides or mycotoxins for more than 20 years. Due to the quick and easy sample preparation procedure, a QuEChERS method based on ammonium acetate combined with formic acid in acetonitrile was tested for the preparation of urine samples for
Daniel Derwand   +4 more
openaire   +4 more sources

Extraction and determination of Benzoyl-urea insecticides in some fresh fruits using dispersive liquid phase micro-extraction and HPLC method [PDF]

open access: yesBihdāsht-i Mavādd-i Ghaz̠āyī, 2021
To improve the quality and increase the shelf life of agricultural products, many pesticides are widely used. Although the use of pesticides in agricultural applications provides a wide range of beneficial effects, overuse of these substances results in ...
J. Khandaghi, M. R. Afshar Mogaddam
doaj   +1 more source

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