Palavra-chave: SIMPLEX CENTROID DESIGNS

PRINCIPAL COMPONENT ANALYSIS EXTRACTION OPTIMIZATION MIXTURE MODELS ERYTHRINA SPECIOSA ANDREW LEAVES PRINCIPAL COMPONENT ERYTHRINA SPECIOSA ANDREWS LEAVES BIOLOGICAL SAMPLES ATOMIC EMISSION SPECTROMETRY METALLIC IONS STATISTICAL MIXTURE DESIGNS PRINCIPAL COMPONENTS BINARY SOLVENT INTERACTIONS MIKANIA LAEVIGATA SCH. BIP. MIXTURE DESIGN EXTRACTIONS SECONDARY METABOLITES COUMARIN CHROMATOGRAPHIC FINGERPRINTS PARAFAC PIGMENTS COFFEE LEAVES ANTIOXIDANT ACTIVITY SOLVENT EXTRACTOR CAFFEA ARABICA