An evaluation of analytical techniques for determination of lead, cadmium, chromium, and mercury in food-packaging materials.

Abstract

Closed microwave digestion and a high-pressure asher have been evaluated for wet-oxidation and extraction of lead, cadmium, chromium, and mercury from a range of typical packaging materials used for food products. For the high-pressure asher a combination of nitric and sulfuric acids was efficient for destruction of a range of packaging materials; for… (More)

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