Abstract

A compact apparatus in which a specific position can be irradiated by microwaves (MW) and ultrasound (US) simul- taneously has been developed. The MW-US reactor has been designed for atmospheric pressure digestion and dissolution of bio- logical and chemical products. The reactor can treat a range of throughputs of 0.1 to 10 grams of a liquid or solid sample. Its application in analytical chemistry has been shown by two examples where decreases in digestion and dissolution time were demonstrated: determination of copper in olive oil and dissolution of refractory mineral material Co 3O4. Simultaneous microwave and ultrasound irradiation is shown as a new technique for atmospheric pressure digestion and dissolution of solid and liquid samples suitable for chemical and biological analysis.

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