针对污油泥首次建立了微波消解-微波等离子体炬原子发射光谱法（MPT-AES）检测其中的金属元素，对其中的Ba、Pb、Cu、Zn、Mn、V、Fe、Sn 8种金属元素进行定量分析。采用微波消解法对污油泥进行彻底消解，考察了元素分析谱线波长、微波功率、载气流量及工作气流量的最适值，优化微波制样及元素分析检测条件。在最佳检测条件下对污油泥中的Ba、Pb、Cu、Zn、Mn、V、Fe、Sn 8种元素定量检测，各元素检出限分别为3.09、22.9、9.6、10.6、6.1、12.15、14.1、14.26 ng/mL；RSD值分别为1.14%、3.77%、1.06%、1.18%、3.71%、4.45%、2.52%、2.73%；加标回收率均在91%~110%范围内。实验结果表明，本方法安全便捷、准确高效，能满足污油泥中金属元素分析需求，同时为污油泥金属污染风险的评估提供数据支撑。

Microwave digestion-microwave plasma torch atomic emission spectrometry (MPT-AES) method is established for the first time to detect Ba,Pb,Cu,Zn,Mn,V,Fe and Sn metal elements in oil sludge.The oil sludge has been thoroughly digested by microwave digestion method.The optimum values for spectral line wavelength,microwave power,carrier gas flow rate and working gas flow rate are investigated,and microwave sample preparation as well as elemental analysis conditions are also optimized.Determination of Ba,Pb,Cu,Zn,Mn,V,Fe and Sn in oil sludge is performed under the optimum conditions.The detection limits for each element are 3.09,22.9,9.6,10.6,6.1,12.15,14.1 and 14.26 ng·mL^-1,respectively.Their RSD values are 1.14%,3.77%,1.06%,1.18%,3.71%,4.45%,2.52% and 2.73%,respectively;All the recoveries are in the range of 91%-110%.The experimental results show that this method is safe,convenient,accurate and efficient,can meet the needs of metal element analysis in oil sludge.At the same time,it provides data support for the assessment of metal pollution risk of oil sludge.

沈聪(1995-),男,硕士生,研究方向为分析化学,l241057964@qq.com;李丽华(1964-),女,博士,教授,研究方向为分析测试新技术和新方法,通讯联系人,llh72@163.com。