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Headspace solid-phase microextraction–gas chromatographic–time-of-flight mass spectrometric methodology for geographical origin verification of coffee

Gas ChromatographyGeographical OriginEnvironmental Analytical ChemistryMass SpectrometryAnalytical ChemistryBiostatisticsLiquid ChromatographyChemistryInstrumentationChromatographic AnalysisMedicineChromatographyDrug Analysis