Search results for "Pyrimethanil"

showing 2 items of 12 documents

Selection of sampling adsorbents and optimisation and validation of a GC-MS/MS method for airborne pesticides

2017

ABSTRACTA methodology for the sampling and determination of airborne pesticides has been developed. The trapping efficiency of three adsorbents, namely XAD-2,XAD-4 and a sandwich sorbent (PUF-XAD2-PUF), was tested for 34 pesticides and the latter was selected because it presented the highest retention capacity without breakthrough. Pesticides were determined by gas chromatography coupled to an ion trap mass spectrometer in tandem. The method showed recoveries ranging from 70% to 120% with limits of quantification in the range of 16.1–322.6 pg m−3 when 155 m3 were sampled. This analytical strategy was applied to 10 indoor air samples collected in dwellings from the Valencian Region. Six pest…

SorbentHealth Toxicology and MutagenesisBifenthrinSoil Science010501 environmental sciences01 natural sciencesAnalytical ChemistryCypermethrinchemistry.chemical_compoundEnvironmental ChemistryWaste Management and Disposal0105 earth and related environmental sciencesWater Science and TechnologyChromatography010401 analytical chemistryPublic Health Environmental and Occupational HealthPesticidePollution0104 chemical scienceschemistryEnvironmental chemistryPesticides GC-MS/MS adsorbents gaseous phase air samplesPyrimethanilIon trapGas chromatographyGas chromatography–mass spectrometryInternational Journal of Environmental Analytical Chemistry
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Molecularly imprinted polymer solid phase extraction of fungicides from wine samples

2014

In order to preconcentrate iprodione fungicide in white wine samples, molecularly imprinted polymers (MIPs) specific for iprodione were synthesized using two polymerization approaches: precipitation (MIPp) and bulk polymerization (MIPb). A comparison of the performance of the MIPs and the corresponding non-imprinted polymers (NIPs) was conducted in batch studies. In this case, the MIPp revealed better recognition properties toward iprodione in wine samples than the MIPb. The MIPp and MIPb were then used as sorbents on solid phase extraction cartridges (MISPEp and MISPEb consecutively) in order to pre-concentrate iprodione from white wine samples. The optimization of the MISPE elution step w…

WineIprodioneChromatographyElutionGeneral Chemical EngineeringGeneral EngineeringMolecularly imprinted polymerAnalytical Chemistrychemistry.chemical_compoundchemistryPolymerizationPyrimethanilSolid phase extractionProcymidoneAnal. Methods
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