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介绍了全谱直读电感耦合等离子体发射光谱法(ICP-OES)测定生物柴油中Na、K、Ca、Mg、Cu、Pb、Zn、Fe、Al、Cr、Mn、Ni、V、Si与P微量元素含量。结果表明,用该法测定生物柴油中微量元素含量可评价生物柴油品质,具有操作简便、全谱直读、可同时快速测定多元素、灵敏度与精准度高等优点。77%的平均基体加标回收率处于80%—130%之间,平均相对标准偏差不超过10%的占82%。该文可为制定生物柴油新微量元素指标和补充标准提供参考。
The determination of Na, K, Ca, Mg, Cu, Pb, Zn, Fe, Al, Cr, Mn, Ni, V and Si in biodiesel by ICP-OES P trace element content. The results showed that this method can be used to evaluate the quality of biodiesel in biodiesel. The method has the advantages of simple operation, direct reading in full spectrum, rapid and simultaneous determination of multiple elements, high sensitivity and high precision. 77% of the average recovery of the matrix between 80% -130% recovery, the average relative standard deviation of not more than 10% accounted for 82%. This article can provide a reference for developing new trace element index and supplementary standard of biodiesel.