1,720,976 research outputs found
Frazioni idrofiliche e idrofobiche di sostanza organica disciolta come indicatori del degrado di un suolo per salinizzazione
No full textSolid phase microextraction and gas chromatography - mass spectrometry for the rapid screening of triazoles residues in wine and strawberries
No full textCharacterization of dissolved organic matter from saline soils by fluorescence spectroscopy
No full textHydrophobic and hydrophillic fractions of soil DOM as indicator of desertification processes for salinization
No full textInteraction between dissolved organic matter and triasulfuron: a chemical and spectroscopic study
No full textSolid-phase microextraction coupled to gas chromatography-mass spectrometry for the study of soil adsorption coefficients of organophosphorus pesticides
No full textIndagini chimiche e spettroscopiche sulle interazioni tra DOM estratta da compost e triasulfuron
No full textIndagini chimiche e spettroscopiche sulle interazioni tra DOM estratta da compost e triasulfuron
No full textFrazioni umiche estratte da suoli e da terricci ammendati con compost arricchiti con ioni ferro: caratterizzazione chimica, spettroscopica e termica
No full textSolid-phase microextraction coupled to gas chromatography-mass spectrometry for the study of soil adsorption coefficients of organophosphorous pesticides
No full textA solid-phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS) method for the
simultaneous determination of the organophosphorus pesticides (OPPs), phorate, diazinon, methyl-parathion,
fenitrothion, malathion, fenthion, ethyl-parathion and methidathion, has been developed to study their soil/
water distribution. The method was used in conjunction with a conventional ‘batch equilibrium method’ to
assess the soil adsorption coefficients (Koc) of the target compounds in different soil samples with known
organic carbon content. Contrary to traditional techniques, the present method is fast, solvent-free and highly
sensitive, thus permitting the assessment of the Koc values of the target compounds even at low soil
concentration levels, close to those encountered in real field contamination, where the Freundlich adsorption
isotherms can be considered to be linear. The estimated Koc values were found to be in good agreement with
those reported in the literature
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