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Dry ashing

Viscera or hair is dried and incinerated in a muffle furnace at 450 to 550 degrees Celsius. Inorganic ash is dissolved in dilute HNO3 for instrumental analysis. Simple and clean for Pb and stable metals, but loses Hg entirely and partially loses As, so unsuitable for those analytes.

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Related terms

Wet digestionAcid blankArsenic (As)Ashing aidHydride generation (HG-AAS)Lead (Pb)Marsh test (1836)Matrix destructionMercury (Hg)Microwave-assisted digestionReinsch testThallium (Tl)

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