Application of closed-vessel microwave digestion method for the determination of multi-elements in environmental samples by sequential ICP-AES

作     者：Xu Liqiang, Shen Wangxing and Zhu Jingfang Shanghai Institute of Metallurgy,Academia Sinica,Shanghai 200050,China Xu Liqiang, Shen Wangxing and Zhu Jingfang Shanghai Institute of Metallurgy,Academia Sinica,Shanghai 200050,China

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：1989年第1卷第2期

页      面：69-75页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

主　　题：microwave digestion environmental sampl sequential ICP-AES elemental analysis. 

摘      要：A closed-vessel microwave digestion method is described for the rapid dissolution of environmental samples such as foods, soils and sediments. Depending on the sample type, 0.1-0.2 g sample was decomposed with HNO3/H2O2 or HNO3 / H2O2/HF acid mixture in a PTFE digestion vessel by using microwave heating for 2-3 min at 500W of microwave power. The solution, or to which 0.5 g of boric acid was added, was diluted to 25-50 ml and directly determined by sequential ICP-AES. The accuracy of the procedure was validated by the analysis of six standard reference materials for 10 elements. Ail results were in a good agreements with the certified values.