Search results for "Multi residue"

showing 2 items of 2 documents

Solid-phase extraction in multi-residue pesticide analysis of water

1993

The determination of pesticides in water is fundamental to the solution of environmental problems as natural waters are usually contaminated with a large number of pesticides. The selection of an isolation and/or concentration technique depends largely on the class of pesticides to be determined. It is often necessary to determine simultaneously a wide variety of compounds in a water sample. Application of solid-phase extraction techniques offers a solution. The mechanisms of solid-phase extraction, types of sorbents and their application to multi-residue pesticide analysis are reviewed.

Multi residueChromatographyChromatographyChemistryNatural waterOrganic ChemistryExtraction (chemistry)Pesticide ResiduesGeneral MedicineContaminationPesticideBiochemistryWater sampleAnalytical ChemistryWater SupplySolid phase extractionWater pollutionWater Pollutants ChemicalJournal of Chromatography A
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Validation of a multi-residue UHPLC-HRMS method for antibiotics screening in milk, fresh cheese, and whey

2022

Abstract The aim of this study was to develop a UHPLC–HRMS methodology as a suitable tool for the screening of antibiotics in milk, fresh cheese, and whey. Compounds were analysed using an Orbitrap Exactive™ analyser working at a resolving power of 50,000 FWHM in full scan, both in positive and negative electrospray ionization mode, and a high mass accuracy (

Multi residueChromatographyChemistrylawElectrospray ionizationAnalyserUhplc hrmsOrbitrapFood Sciencelaw.inventionJournal of Food Composition and Analysis
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