不同土壤消解方法对重金属铬检测结果的影响

Effects of Different Soil Digestion Methods on Detection Results of Heavy Metal Chromium

用检测仪器测量土壤中铬的含量时,不同的消解方法或步骤与仪器的检测结果有很大关联[1]。在实际检测工作中,不同酸的比例搭配会直接影响土壤样品消解是否完全,以及是否存在损失和干扰。在以往的经验中,土壤中铬的测量结果总是偏低很多,所以,本研究旨在改良国标方法,找到一个适用于测量铬的消解方法,并保证该方法简单,易于操作,且安全性高,经济效益好[2]。

When measuring the chromium content in soil with instruments,different digestion methods or steps have a great correlation with the detection results of instruments[1].In the actual testing work,the proportion of different acids will directly affect whether the soil sample digestion is complete,and whether there is loss and interference.In the past experience,the measurement results of chromium in soil are always much lower.Therefore,this study aims to improve the national standard method and find a digestion method suitable for the measurement of chromium,and ensure that the method is simple and easy to operate,with high safety and good economic benefits[2].