In the paper the tissues of the edible river snail,stone snail and river clamwere digested and the trace mercury was assayed by the cold vapor atomic absorption method.

• 本文对田螺、石螺及河蚬可食部分进行消化处理；采用冷原子吸收法对其痕量汞进行测定.；平行测定的相对标准偏差和回收率结果表明；该方法简便、实用；有较好的准确度和精密度