土壤中铅的简易分析方法与分布特征研究

文章研究了利用便携式荧光X线分析仪测量土壤中铅的简易分析方法,评价了测量铅的简易分析方法与国家标准分析方法之间的相关性,分析了其相关性随土壤颗粒的粒径和污染物的浓度而发生变化特征(相关系数0.91～0.98),确认了简易分析方法在土壤污染治理和现场污染调查中的适用性。同时,为了提高污染土壤的修复工作效率,考察了不同粒径土壤颗粒样品中的铅污染物分布特征,分析了其污染物在小粒径土壤颗粒中高浓度的特征。

Study of Simple Analysis Method and Distribution Characteristic of Pb in Soil

The paper studied the simple analysis method by the use of portable X-ray fluorescence analyzer which was used to measure the content level of Pb in soil,and evaluated the correlation between simple analysis method and national standard method.It also studied the correlation variation characteristics following the change of soil particle diameter and concentration of pollutants（correlation coefficients 0.91～0.98）,and also confirmed the applicability of simple analysis method in the fields of improving soil pollution and on-the-spot pollution survey.Meanwhile,in order to improve the efficiency of remediation for severe polluted soil,we also investigated the distribution characteristics of Pb pollutants in soil particles samples with different diameter,and analyzed the high concentration features of the lead pollutants in small diameter soil particles.