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Application of constrained mixture design and Doehlert matrix in the optimization of dispersive liquid-liquid microextraction assisted by ultrasound for preconcentration and determination of cadmium in sediment and water samples by FAAS

Chemical EngineeringEnvironmental ChemistryEngineeringEnvironmental EngineeringEnvironmental Analytical ChemistrySample TreatmentConstrained Mixture DesignDoehlert MatrixEnvironmental RemediationAnalytical ChemistryUltrasoundSample Pre-treatmentSample PreparationElemental CharacterizationChromatographyDispersive Liquid-liquid Microextraction