摘要
采用微波消解-电感耦合等离子体质谱法同时测定土壤中砷、镉、铬、铜、汞、镍、铅、锌8种痕量元素,对质谱干扰和非质谱干扰进行了校正。8种重金属元素在一定的质量浓度范围内与其信号强度呈线性关系,方法的检出限(3s)在0.001 2~0.029μg/L。用加标回收测定其回收率,加标回收率范围在90.0%~96.3%,对土壤样品平行测定6次,测定值的相对标准偏差在2.1%~3.0%。对湛江南柳河附近土壤进行重金属监测,监测结果符合标准要求。
In this paper, microwave digestion - inductively coupled plasma mass spectrometry （ICP-MS） was used for simultaneous determination of 8 kinds of trace elements of arsenic, cadmium, chromium, copper, mercury, nickel, lead and zinc in soil. The mass spectrometry and non-mass spectral disturbances were corrected. These eight heavy metal elements showed a linear relationship of concentration and signal intensity for a certain concentration range. The 3s detection limit was between 0. 001 2 - 0. 029μg/L and recovery rate ranged between 90.0% - 96.3%. The relative standard deviation of six measurements was 2.1% - 3.0%. The method was used for heavy metal monitoring in soil near Zhanjiang south Liuhe River, and monitoring results in accordance with relevant standards.
作者
吴永盛
徐金龙
庄姜云
黄武
吕善胜
WU Yongsheng;XU Jinlong;ZHUANG Jiangyun;HUANG Wu;LV Shansheng(Zhanjiang Entry-exit Inspection and Quarantine Bureau ,Zhanjiang,Guangdong 524000,Chin)
出处
《中国无机分析化学》
CAS
2017年第4期16-20,共5页
Chinese Journal of Inorganic Analytical Chemistry
基金
湛江市2014年社会发展引导专题项目(2014A01009)资助
