AAnalytica Chimica Acta3/26/2026HS–GC determination of atmospheric greenhouse gases with direct in-vial sampling and multiple headspace extraction as an in-vial dilution strategyM.J. Cardador·L. Arce·Maria A. Martin·A. Martín-Gómez·J.A. Salatti-Dorado·V. Rodríguez-Estévez·C. Reyes-PalomoRead at Analytica Chimica ActaTagsAtmospheric and Environmental Gas DynamicsGlobal and Planetary ChangeDilutionSampling (signal processing)Extraction (chemistry)Greenhouse gasIsotope dilutionAnalytical Chemistry (journal)