本文提出了阳极溶出伏安法测定土壤中痕量银的样品处理的新方法:样品与碳酸钠高温熔融,然后用氨水萃取银,回收率达90％,测定银的灵敏度达0.02 ppb。 In this paper, a new method for the determination of trace silver in soil by anodic stripping voltammetry is proposed. The samples are melted with sodium carbonate at high temperature and then the silver is extracted with ammonia water. The recovery rate is 90%. The sensitivity of silver is 0.02 ppb.