微波消解-电感耦合等离子体质谱同时测定普里兹湾沉积物中微量元素  

Simultaneous determination of trace elements in sediments of prydz bay by microwave digestion-inductively coupled plasma mass spectrometry

作　　者：王志广[1,2] 陈发荣[2,3] 郑立[2] 张道来[4] 李俊飞[1] 于锡娟[1] 王小如[2] 

机构地区：[1]青岛科技大学化学与分子工程学院,青岛266042 [2]国家海洋局第一海洋研究所,青岛266061 [3]中国海洋大学化学化工学院,青岛266100 [4]青岛海洋地质研究所,青岛266071

出　　处：《分析试验室》2012年第8期50-54,共5页Chinese Journal of Analysis Laboratory

基　　金：中国海监技术支撑项目(ZF01-09);科技基础性工作专项(2008FY230600);青岛市公共领域科技支撑计划项目(12-1-3-82-jh)资助

摘　　要：以HNO3-H2O2为消解体系,采用微波对沉积物进行消解,建立了普里兹湾沉积物中微量元素的电感耦合等离子体质谱(ICP-MS)测定方法。从样品分析数据可以看出:8个站位10种元素总量变化范围为493.41～1481.02μg/g,总量最大值是最小值的3.00倍。元素Ba、Mn在总量中占了很大比例,V次之,而As、Mo、Ag、Cd的含量很少。大部分元素检出限可达ng/L,仅Co、Mo 2种元素的检出限稍高;各元素线性良好,相关系数r2≥0.9997。方法的RSD<5.0%,适用于普里兹湾沉积物中微量元素的定量分析。An inductively coupled plasma mass spectrometric（ICP-MS） method for the determination of trace elements in sediments of Prydz Bay was established.The samples were digested by microwave using HNO3-H2O2 as oxidants.The results showed that the total contents of ten elements in eight sites ranged from 493.41 to 1481.02 μg/g and the maximum value was 3.00 times of the minimum value.Elements Ba and Mn took a large proportion of the total sum,followed by V,while the contents of As,Mo,Ag and Cd were low.For the method,the detection limit of other elements could reach ng/L level except Co and Mo.The linear correlation cofficients of the method was preferable（r2≥0.9997）.

关 键 词：普里兹湾 沉积物 微量元素 电感耦合等离子体质谱 

分 类 号：O657.63[理学—分析化学]