煤中痕量重金属测量中样品预处理的研究与应用

STUDY ON AND APPLICATION OF SAMPLE PRETREATMENT FOR MEASUREMENT OF TRACE HEAVY METALS IN COAL

介绍煤中痕量重金属元素测量中两种不同的样品预处理方法———微波消解法和电热板消解法。对比试验证明,微波消解法比电热板消解法更加快速、准确,而且操作简便,污染小,是一种值得推荐的预处理方法。

Two different sample pretreatment methods for measurement of trace heavy metals in coal, namely microwave method and electric heating plate method, have been presented. Comparative experimental results show that the microwave technique to be more comvenient, accurate, and rapid, as well as to have smaller polution in operation than that of the electric heating plate method, hence, the microwave method is a pretreatment method which merits recommendation.