文档介绍：总 780 期第十期 河南科技
nd analyzed. The analysis results are as follows:①Due to the incomplete digestion of the elec⁃
tric heating plate, the test values of the six elements are all low. The accuracy, precision and recovery
rate of the test are all low;②After automatic graphite digestion, the contents of other elements in the soil
are all within the standard value except Cr;③Among the three different digestion methods, the soil di⁃
gested by microwave has the best test accuracy, precision and standard recovery of six elements. The
above analysis results showed that Microwave digestion is an ideal soil digestion method with the best ac⁃
curacy, accuracy and recovery rate.
digestion method;detection;soil;accuracy
Keywords:
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0 为严重［ ］。若要准确检测土壤样品中的重金属的
引言
含量，最关键的一步是消解。土壤样品的消解对准
随着工农业的快速发展，产生了大量废渣、废 确测定土壤中重金属含量具有重要的影响，不同的
水等废弃物。这些废弃物的不规范排放，导致土壤 消 解 方 法 ，操 作 难 易 不 同 ，对 结 果 的 影 响 也 不
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被严重污染。通过对土壤污染物检测发现，污染物 同［ ］。本研究采用微波消解、电热板消解和全自
的种类和浓度均有不同程度的上升。由于重金属