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Optimization of headspace solid-phase microextraction for analysis of β-caryophyllene in a nanoemulsion dosage form prepared with copaiba (Copaifera multijuga Hayne) oil

Solvent ExtractionChemical EngineeringEngineeringHeadspace Solid-phase MicroextractionNanoemulsion Dosage FormMicroemulsionCopaifera Multijuga HayneAnalytical ChemistryChemistryChromatography