| 摘要: |
| 为明确海洋生物体中微量元素的含量状况，开发了一种适合海洋生物体中微量元素准确测定的分析方法。研究采用防腐高效溶样罐对GBW08517（海带Saccharina japonica）与GBW08571（贻贝Mytilus coruscus Goyld）2种国内海洋生物标准物质进行2种不同前处理方法的消解实验，然后应用电感耦合等离子质谱仪（ICP-MS）测试了包括稀土元素在内的33个微量元素。实验结果表明，除个别元素外，测试结果均与标准值相符合，且前处理方法1消解的生物样品测试结果更加准确和稳定。使用防腐高效溶样罐优化了生物样品处理的消解方法，能有效去除生物样品中的有机基体，使ICP-MS充分发挥优势。与以往的消解方法相比，在生物消解中效果优于微波消解，前处理方法1还具有易操作、处理效率高、低试剂消耗、安全性强、避免样品污染等优点。 |
| 关键词: 电感耦合等离子质谱仪(ICP-MS) 防腐高效溶样罐 标准物质 |
| DOI：10.11759/hykx20190307001 |
| 分类号:O654.1 |
| 基金项目:中国农业科学院科技创新工程（ASTIP-TRIC06）；国家农产品质量安全风险评估重大专项（GJFP201701003） |
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| etermination of trace elements in marine organisms by anticorrosive and efficient digestion bomb-ICP-MS method |
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QIU Jun1, SUN Peng1, LIU Wen-lin2, WANG Xiao-ting3, YU Wei-song1
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1.Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China;2.Qingdao Justo Packaging Co. Ltd., Qingdao 266107, China;3.China Tobacco Shandong Industrial Co. Ltd., Jinan 250014, China
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| Abstract: |
| Herein, we developed an accurate method to quantify trace elements in marine organisms. Two oceanic biological reference materials, Saccharina japonica and Mytilus coruscus Gould, were first digested using two pretreatment methods based on an anticorrosive high efficiency digestion bomb, then 33 trace elements including rare earth elements were quantified by inductively coupled plasma mass spectrometry (ICP-MS). The results obtained were consistent with the recommended values, except for a few elements, and the digestion pretreatment method 1 provided more stable and accurate results than method 2. The pretreatment method optimized by using a digestion bomb effectively removed the organic matrix, which ultimately facilitated the good performance of the ICP-MS. Compared with previously reported digestion methods, the method established in this study showed better efficacy and had more advantages, such as ease of operation, fast speed, low cost, less reagent consumption, less contamination, safety, and enhanced reliability. |
| Key words: inductively coupled plasma mass spectrometry (ICP-MS) anticorrosive high efficiency digestion bomb reference material |
