我国测定固体中硅元素的主要分析方法为重量法和容量法,标准方法主要有重量法测定硅量(GB 6730,10—1986)和钼蓝分光光度法测定硅量(GB11064,8—89)等方法.目前我国尚无碱熔-电感耦合等离子体原子发射光谱法对土壤和沉积物中硅测定的标准方法.分析土壤中金属元素多采用酸溶法进行前处理,但常见的酸溶法不能完全溶解固体中的硅 The main analytical methods for determining silicon in solid are gravimetric method and volumetric method. The standard methods include the determination of silicon content by gravimetric method (GB 6730 and 10-1986) and molybdenum blue spectrophotometric method (GB 11064 and 8-89) Etc. At present, there is no standard method for determination of silicon in soils and sediments by alkali fusion-inductively coupled plasma atomic emission spectrometry in our country.Analysis of metal elements in soil by acid-solution method is the most common method, The solid silicon can not be completely dissolved