ICP-OES法测定土壤中有效硅浸提剂浓度和浸提时间优化

The Improvement of ICP-OES Method to Determine the Effective Silicon in Soil

使用不同浸提剂浓度和浸提时间对国家标准土壤有效态成分参比物质进行前处理,以硅单元素标准溶液建立工作曲线,采用ICP-OES测定过滤溶液中硅含量。通过对不同方法测定结果的比较分析,浸提剂浓度为柠檬酸溶液0.050mol/L,浸提时间为5h的前处理方法普适性更强,为土壤中有效硅批量化高效、准确检测提供分析方法借鉴。

Reference materials of soil active components preparation was implemented by different extracted solution concentration and extraction time.Spectrometric line was established through the use of Silicon Standard Solution.The effective silicon content in soil was measured by ICP-OES.The results show that pretreatment method can be widely used with 0.050mol/l citric acid which was suitable for the determination of effective silicon in soil more accurately.