A new method for the determination of trace arsenic in natural water and standard samples of sediment by HG-ICP-AES after separation/preconcentration.

• 采用孔雀绿与砷钼酸盐形成离子对，以聚铝作为共沉淀剂富集分离，HG-ICP-AES法测定痕量砷的新方法。