电热板加热消解-电感耦合等离子体发射光谱法测定渗滤液中多种金属元素

Determination of Metal Elements in Leachate by Inductively Coupled Plasma Atomic Emission Spectrometry with Electric Heating Plate Digestion

为了快速准确地测定各种垃圾渗滤液中铅、镉、铬、铁、锰的含量,建立了电热板加热消解-电感耦合等离子体发射光谱法。方法学分析结果显示,该方法的检出限在0.006~0.054 mg/L,测定下限在0.024~0.216 mg/L;相对偏差在0.53%~3.88%,加标回收率在73.0%~102.0%,质控样结果均在标准物质的不确定度范围内,具有良好的精密度和准确度。该方法能够满足渗滤液中铅、镉、铬、铁、锰5种金属元素同时测定的要求。

In order to quickly and accurately determine the contents of lead,cadmium,chromium,iron and manganese in various leachate,a hot plate heating digestion inductively coupled plasma atomic emission spectrometry is established.The results of the methodological analysis showed,the detection limit is 0.006~0.054 mg/L,the determination limit is 0.024~0.216 mg/L.The relative deviation is 0.53%~3.88%,the recovery rate of spiked is 73.0%~102.0%,and the quality control sample results are all within the uncertainty range of the reference material,with good precision and accuracy.This method can meet the requirements of simultaneous determination of lead,cadmium,chromium,iron and manganese metal elements in leachate.