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Effect of HF addition on the microwave-assisted acid-digestion for the determination of metals in coal by inductively coupled plasma-atomic emission spectrometry

Chemical EngineeringEnvironmental ChemistryEngineeringClean Coal TechnologyAtomic Emission SpectroscopyNatural SciencesSpectroscopyEnvironmental Analytical ChemistryMass SpectrometryMicrowave-assisted Acid-digestionAnalytical ChemistryPlasma-atomic Emission SpectrometryChemistryHf AdditionElemental CharacterizationCoal Utilization