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关于土壤汞的自然含量,我国少数地区曾通过土壤背景值调查作过一些报道。但有关我国各类土壤汞的自然含量,却还未曾见到报道。一、材料和方法采样点选在远离人类活动未受污染的山区或乡野。土壤样品风干、细磨、过100目网筛后以硝酸、硫酸、五氧化二钒催化硝化,用CG-1型测汞仪测汞。有机质用常规方法测定。
On the natural content of mercury in soil, a few areas in our country have made some reports through soil background survey. However, the natural content of various kinds of soil mercury in our country has not yet been reported. First, materials and methods Sampling points away from human activities in the unpolluted mountain or country. Soil samples were air-dried and finely ground. After nitrifying through nitric acid, sulfuric acid and vanadium pentoxide over a 100-mesh sieve, mercury was measured by CG-1 mercury analyzer. The organic matter is measured by conventional methods.