| 电感耦合等离子体质谱法测定海洋贝类中镉、铬、铜和铅 |
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| 引用本文： | 龚倩,金高娃,李小蕾,史永富,蔡友琼,顾润润. 电感耦合等离子体质谱法测定海洋贝类中镉、铬、铜和铅[J]. 理化检验(化学分册), 2012, 0(5): 594-596 |
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| 作者姓名： | 龚倩 金高娃 李小蕾 史永富 蔡友琼 顾润润 |
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| 作者单位： | 中国海洋大学食品科学与工程学院;中国水产科学研究院东海水产研究所 |
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| 基金项目： | 国家科技支撑计划重大项目(2009BADB7B02);中央级公益性科研院所基本科研业务费项目(No.2009M02) |
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| 摘 要： | 采用微波消解法处理海洋贝类样品,用电感耦合等离子体质谱法测定样品中镉、铬、铜和铅等4种重金属元素的含量。选择111 Cd、53 Cr、63 Cu和208 Pb等待测元素的同位素克服了质谱干扰。4种元素分别在一定的质量浓度范围内呈线性,检出限(3s)在0.005～0.17μg.L-1之间。镉、铬、铜和铅的回收率分别为94.7%,102.1%,101.9%,105.3%;测定值的相对标准偏差(n=7)分别为4.3%,3.8%,1.5%,6.0%。
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| 关 键 词： | 电感耦合等离子体质谱法 微波消解 贝类 镉 铬 铜 铅 |
ICP-MS Determination of Cd,Cr,Cu and Pb in Seashell |
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| GONG Qian,JIN Gao-wa,LI Xiao-lei,SHI Yong-fu,CAI You-qiong,GU Run-run. ICP-MS Determination of Cd,Cr,Cu and Pb in Seashell[J]. Physical Testing and Chemical Analysis Part B:Chemical Analgsis, 2012, 0(5): 594-596 |
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| Authors: | GONG Qian JIN Gao-wa LI Xiao-lei SHI Yong-fu CAI You-qiong GU Run-run |
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| Affiliation: | 1.College of Food Science and Engineering,Ocean University of China,Qingdao 266003,China; 2.East China Research Institute of Sea Fisheries,Chinese Academy of Fishery Science,Shanghai 200090,China) |
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| Abstract: | Sample of seashell was pretreated by microwave assisted digestion,and the contents of Cd,Cr,Cu and Pb in sample solution were determined by ICP-MS.The isotopes(i.e.,111Cd,53Cr,63Cu and 208Pb) of the elements determined were selected to overcome the mass spectrometric interferences.Linear relationships of the 4 elements were kept in definite ranges,with detection limits(3s) in the range of 0.005-0.17 μg·L-1.Values of recovery and RSD′s(n=7) found were 94.7% and 4.3% for Cd,102.1% and 3.8% for Cr,101.9% and 1.5% for Cu,105.3% and 6.0% for Pb. |
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| Keywords: | ICP-MS Microwave digestion Seashell Cd Cr Cu Pb |
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