收藏我们   ENGLISH  
论文查询
范围:  
提 交
《化学分析计量》 2019年第03期
DOI:10.3969/j.issn.1008-6145.2019.03.018
微波消解-电感耦合等离子体质谱法测定鲤鱼、河蚌样品中的铜、镉、铅、铬
王晨希
镇江市环境监测中心,江苏镇江 212000 
Determination of copper, cadmium, lead and chromium in carp and freshwater mussel samples by microwave digestion-inductively coupled plasma mass spectrometry
WANG Chenxi
Zhenjiang Environmental Monitoring Center, Zhenjiang 212000, China 
摘要:建立微波消解-电感耦合等离子体质谱法同时测定鲤鱼、河蚌样品中铜、镉、铅、铬4 种重金属元素的含量。以20.0 μg/L 的Rh 作为内标,采用硝酸-过氧化氢消解液,用微波消解仪消解鲤鱼、河蚌等生物样品,在选定的仪器工作条件下测定。铜、镉、铅、铬4 种重金属元素的质量浓度在1~100 μg/L 范围内与其质谱强度呈良好的线性关系,相关系数均为0.999 9,方法检出限为0.01~0.09 μg/L。测定结果的相对标准偏差为1.30%~9.95%(n=6),样品加标回收率为91.0%~111%。用所建方法对黄鱼国家标准物质(GBW 08573)进行测定,测定值与标准值基本一致,相对误差均小于7%。该方法简单、快速,灵敏度高,重现性好,适用于大批量生物样品中多种重金属元素的同时测定。 
Abstract:A method for simultaneous determination of 4 metal elements of copper, cadmium, lead and chromium in carp and freshwater mussel samples by microwave digestion-inductively coupled plasma mass spectrometry was established. Using 20.0 g/L Rh as the internal standard, nitric acid-hydrogen peroxide as the digestion solution, carp and freshwater mussel samples were digested by microwave digestion instrument and determined under selected working conditions. The mass concentration of copper, cadmium, lead and chromium had good linear relationship with the mass spectrometric intensity in the range of 1-100 μg/L, the correlation coefficients were all 0.999 9. The detection limits were 0.01-0.09 μg/L. The relative standard deviations of the detection results were 1.30%-9.95%(n =6), and the recoveries of samples were 91.0%-111%. The national standard substance of yellow croaker (GBW 08573) were tested by this method, the measured values were basically consistent with the standard values, and the relative errors were less than 7%. The method is simple, rapid, sensitive and reproducible, it is suitable for the simultaneous determination of various heavy metals in large quantities of biological samples. 
关键词:微波消解;电感耦合等离子体质谱法;鲤鱼;河蚌;重金属 
Keywords:microwave digestion; ICP-MS; carp; freshwater mussel; heavy metal 
本文引用格式:
王晨希. 微波消解- 电感耦合等离子体质谱法测定鲤鱼、河蚌样品中的铜、镉、铅、铬[J]. 化学分析计量,2019,28(3):74-77.
WANG C X. Determination of copper,cadmium,lead and chromium in carp and freshwater mussel samples by microwave digestion-inductively coupled plasma mass spectrometry[J]. Chemical analysis and meterage,2019,28(3):74-77. 

全文:
相似文章:
  ICP-MS法测定土壤中12种金属元素时的样品前处理方法
2019年第04期
  ICP-MS法测定新会柑普茶元素溶出特性
2019年第04期
  ICP-MS法测定镍基单晶高温合金DD416中的镓、锡、锑、铅、铋
2019年第04期
  电感耦合等离子体原子发射光谱法同时测定土壤中的铜、锌、镍、铬
2019年第03期
  微波消解-电感耦合等离子体发射光谱法测定固体生物质燃料中8 种元素
2019年第02期
  石墨消解-电感耦合等离子体质谱法测定土壤及沉积物中钴、钼、锑、铅
2019年第02期
  微波消解-电感耦合等离子体发射光谱法测定多金属矿中10 种主次元素
2019年第02期
  微波消解-电感耦合等离子体质谱法测定新西兰蜂蜜中45 种元素
2019年第02期
  逆王水微波消解-电感耦合等离子体质谱法测定地球化学样品中的碘和溴
2019年第01期
  测定土壤中重金属元素的样品消解方法
2019年第01期
《化学分析计量》杂志社 版权所有,未经授权禁止复制或者建立镜像
地址:山东省济南市天桥区田庄东路3号 邮编:250031
电话:0531-85878132 85878148 85878224 85878278 传真:0531-85947355
鲁ICP备05018524号-6