Sample was digested in polytetrafluorethylene sealed vesssle by nitric acid-perhydrol or high chloric acid-perhydrol, Hg As Pb were simultaneously determinated by ICP-AES.

采用高压溶样弹，将样品用硝酸-过氧氢或高氯酸-过氧氢溶解后，用ICP-AES法对汞砷铅连续测定。