论文部分内容阅读
随着人们生活水平的提高,我们除关心影响健康的微量(10-9～10-6g/g)有害元素,如As、Cd、Cr、Pb、Hg等外,同时也关注一些高含量(10-3～10-1g/g)营养元素,如K、Na、Ca、Mg、Fe等。食品中多元素常规测试步骤:先微波消解,痕量元素ICP-MS分析;高含量元素采用ICP-OES或将样品二次稀释(例如人工溶液稀释、自动进样器稀释或气体HMI稀释)再ICP-MS分析。
With the improvement of people’s living standard, we also pay attention to some harmful elements such as As, Cd, Cr, Pb, Hg and so on which are harmful to health (10-9 ~ 10-6g / g) -3 ~ 10-1g / g) nutrients, such as K, Na, Ca, Mg, Fe and so on. Multi-element food routine test steps: first microwave digestion, trace elements ICP-MS analysis; high content of elements using ICP-OES or the second sample dilution (such as artificial solution dilution, autosampler dilution or diluted gas HMI) ICP-MS analysis.