Step 1: Ashing Step 2: Solublize ash in Conc. HCl - boil and evaporate solution to dryness. Step 3: Re-dissolve residue in 0.5 N HCl. Step 4: Conc. or dilute as desired Step 5: Determination of individual components. Elemental AnalysisStep 1: Ashing Step 2: Solublize ash in Conc. HCl - boil and evaporate solution to dryness. Step 3: Re-dissolve residue in 0.5 N HCl. Step 4: Conc. or dilute as desired Step 5: Determination of individual components. Elemental Analysis