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在２．０％ＨＣｌ及加入少量饱和溴水的条件下，用泡沫塑料吸附富集金。用１．０％硫脲溶液热浸提取金，然后用涂层石墨管和平台，无火焰原子吸收分光光度计测定天然水中痕量金的含量。该方法简单、可靠。
In 2.0% HCl and adding a small amount of saturated bromine water conditions, the foam adsorption of gold enrichment. Gold was hot-leached with 1.0% thiourea solution, and then the content of trace gold in natural water was measured by a flameless atomic absorption spectrophotometer using a coated graphite tube and platform. The method is simple and reliable.