Results 21 to 30 of about 9,324 (214)
Shipin gongye ke-ji, 2022 An ultra-performance liquid chromatography-tandem mass spectrometry method was developed for the simultaneous determination of 9 mycotoxins in fruit. Sample extraction, purification conditions and instrument conditions were optimized.
Yang NI +4 more
doaj +1 more source
Pesticide-Residue Analysis in Soils by the QuEChERS Method: A Review
Molecules, 2022 Pesticides are among the most important contaminants worldwide due to their wide use, persistence, and toxicity. Their presence in soils is not only important from an environmental point of view, but also for food safety issues, since such residues can migrate from soils to food.
Miguel Ángel González-Curbelo +2 more
openaire +3 more sources
Shipin gongye ke-ji, 2023 Objective: A method for simultaneous determination of 17 β-receptor agonists in meat was established by QuEChERS EMR-Lipid with isotope dilution-ultra performance liquid chromatography-tandem mass spectrometry. Methods: The samples were added to ammonium
Rui MAO +5 more
doaj +1 more source
Shipin gongye ke-ji, 2023 A quick, easy, cheap, effective, rugged and safe pre-treatment method (QuEChERS) was established to evaluate the risk of tetracycline residues in the muscle of Channa argus.
Lichun LI +10 more
doaj +1 more source
QuEChERS extraction of benzodiazepines in biological matrices
Journal of Pharmaceutical Analysis, 2013 Two common analytical chemical problems often encountered when using chromatographic techniques in drug analysis are matrix interferences and ion suppression. Common sample preparation often involves the dilution of the sample prior to injection onto an instrument, especially for liquid chromatography-mass spectrometry (LC-MS) analyses.
Jessica L. Westland, Frank L. Dorman
openaire +3 more sources
Shipin gongye ke-ji, 2022 A method for the simultaneous determination of 24 sulfonamide antibiotics including sulfamethazine, sulfaguanidine, sulfanilamide and so on in fish products was established by QuEChERS coupled with ultra performance liquid chromatography-tandem mass ...
Shuo LI +6 more
doaj +1 more source
Development of QuEChERS method Combined with dispersive liquid-liquid microextraction for determination of some pesticides in cucumber samples using High-performance liquid chromatography [PDF]
Bihdāsht-i Mavādd-i Ghaz̠āyī, 2023 Due to the widespread use of pesticides to protect agricultural products around the world and the accumulation of residues of these substances in plant tissue, most of the products that have been exposed to pesticides contain amounts of pesticide ...
Fatemeh Nasiri +3 more
doaj +1 more source
Zhongguo shipin weisheng zazhi, 2022 ObjectiveA qualitative and quantitative method was established for the simultaneous detection of 60 mycotoxins in nuts and dried fruits.MethodsPeanuts and raisins， two typical food substrates rich in fat and sugar， were pre-processed by QuEChERS ...
WANG Wei +5 more
doaj +1 more source
Residue Analysis of Insecticides in Potatoes by QuEChERS-dSPE/UHPLC-PDA [PDF]
Foods, 2020 Insecticides are broadly applied in agriculture to defend crops from illnesses and pest attacks, consequently guaranteeing high production. However, their residual deposits in food products are becoming a main concern with regard to human consumption. As such, sensitive analytical methods should be developed to assess, prevent and control insecticide ...
Reis, Débora +3 more
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QuEChER method for air microbiological monitoring in hospital environments
The Journal of Infection in Developing Countries, 2020 Introduction: Nosocomial pathogens have become a priority issue for public health, since they are responsible for increased morbidity and mortality in hospitalized patients and the development of multi-resistant microorganisms, as well. Recent studies found strong evidence that airborne transmission plays a key role in many nosocomial infections. Thus,
Tavera Busso, Iván +5 more
openaire +5 more sources