[Determination of mercury in battery by microwave digestion cold atomic absorption spectrometry].

In this paper, a method of microwave digestion followed by cold atomic absorption spectrometry (CAAS) for the determination of mercury in battery was developed. Microwave digestion conditions and operational conditions of CAAS were optimized. The digestive solution was a mixture of hydrochloric acid-sulfuric acid (4:1, volume ratio) and the digestive time was 3 min at a microwave power of 1.