6533b86efe1ef96bd12cb394
RESEARCH PRODUCT
Comprehensive analysis of airborne pesticides using hard cap espresso extraction-liquid chromatography-high-resolution mass spectrometry
Francesc A. Esteve-turrillasClara CoscollàMiguel De La GuardiaAntonio LópezSergio ArmentaVicent Yusàsubject
Analytical chemistry010501 environmental sciencesMass spectrometry01 natural sciencesBiochemistryMass SpectrometryAnalytical Chemistrychemistry.chemical_compoundEspressoMicrowavesAcetonitrileSolvent extractionChromatography High Pressure Liquid0105 earth and related environmental sciencesAir PollutantsChromatographyPesticide residue010401 analytical chemistryOrganic ChemistryExtraction (chemistry)Pesticide ResiduesGeneral MedicinePesticide0104 chemical scienceschemistrySalting outParticulate Matterdescription
A hard cap espresso extraction procedure has been developed to recover airborne pesticides in particulate matter trapped in filters. This extraction step was made for 20s at 72°C and 19bar using 50mL of 20% (v/v) acetonitrile in water. After that, based on NaCl salting out, extracts were concentrated 22 times and analysed by ultra-high performance liquid chromatography - high resolution mass spectrometry. 35 pesticides were evaluated, as a proof of concept, being validated the whole methodology and compared the extraction method with that based on microwave assisted extraction for 20min. In short, the method avoids cross-contamination of samples, it is relatively fast and consumes only 10mL acetonitrile and 8g NaCl per sample; thus, offering a low cost and green alternatively to available methods based on pressurized solvent extraction or microwave-assisted treatment.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-04-10 | Journal of Chromatography A |