ABSTRACT
Accurate determination of the heavy metals concentration in contaminated soil is the basis for assessing the soil contamination degree and screening land remediation technology. The measured values of the heavy metal concentration in the contaminated soil are affected by pretreatment method and measuring process. There is a big difficulty in optimizing the modern high-precision analytical instruments to reduce experimental error, and the optimization of soil pretreatment process is able to significantly improve the measured accuracy and precision of heavy metals concentration in soil [1].
