【摘要】 分别用盐酸-硝酸-氢氟酸-高氯酸全消解法和微波消解法消解土壤并测定土壤中砷、铅、镉、铬4种重金属元素,比较两种方法的检出限、准确度和回收率。结果表明,两种消解方法均具有良好的相关性、准确度和回收率,在统计学上无显著性差异。与全消解法相比,微波消解法具有操作简单、可批量检测、试剂消耗量小、安全性高等优点,值得推广应用。更多还原

【Abstract】 The Hydrochloric acid-nitric acid-hydrofluoric acid-perchloric acid Digestion Method and the Microwave Digestion Method were used respectively in soil digesting,four heavy metal elements(As, Pb, Cd, Cr) in soil were tested and compared by detection limit, accuracy and recoveries of the two methods.The results showed that the two digestion methods had good correlation, accuracy and recoveries, and no significant difference in statistics.Compared with Hydrochloric acid-nitric acid-hydrofluoric acid-perchloric acid Digestion Method, microwave digestion method was advanced in operation, batch,reagent consumption and safety, it is worth to popularize and apply.更多还原