Determination of 16 Rare Earth Elements in Banana by Microwave Digestion and ICP-MS  

微波消解ICP-MS法结合同时测定香蕉中的16种稀土元素含量(英文)

作　　者：范稚莉[1] 范稚莲[2] 闫飞燕[3] 莫磊兴[3] 王天顺[3] 廖洁[3] 牙禹[3] 范业赓[3] 

机构地区：[1]珠海出入境检验检疫局技术中心,广东珠海519015 [2]广西大学农学院,广西南宁530003 [3]广西农业科学院农产品质量安全与检测技术研究所,广西南宁530007

出　　处：《Agricultural Science & Technology》2013年第11期1583-1586,共4页农业科学与技术（英文版）

基　　金：Supported by Key Project of Guangxi Academy of Agricultural Sciences(GNK2013YZ07)~~

摘　　要：[Objective] This study aimed to investigate the residues of rare earth ele-ments in Guangxi banana from banana-producing area with application of rare earth fertilizers and evaluate the safety of using rare earth fertilizers in banana production. [Method] HNO3＋H2O2 mixed acid system with high pressure airtight microwave di-gestion sample pretreatment method and ICP-MS technology were used, to establish a determination method of 16 rare earth elements in banana samples, including Sc45, Y89, La139, Ce140, Pr141, Sm147, Eu153, Gb157, Tb159, Nd144, Dy163, Ho165, Er166, Tm169, Yb172 and Lu175. [Result] Different standard curves present-ed good linearity. Detection limit of the instrument was 0.002-0.01 μg/L; detection limit of the method was 0.1-0.6 μg/kg; recovery rate of standard addition was 94.5%-116%; relative standard deviation was 2.02%-14.21%. [Conclusion] This method has many advantages, such as simple mass spectrogram, high sensitivity and high selectivity, accurate quantification, high precision and accuracy, simple operation, high reproducibility and high recovery rate, which is suitable for the detection of rare earth elements in banana and other fruits, with certain theoretical and applicable val-ue for guiding banana production and high-efficient planting.[目的]旨在了解广西香蕉产区施用稀土农用肥的稀土元素残留情况，指导香蕉生产，评价稀土农用肥的安全性。[方法]采用ICP-MS等离子体质谱法和使用HNO3＋H2O2混酸体系高压密闭微波前处理样品联合技术，建立测定香蕉样品中16种稀土元素（Sc45，Y89，La139，Ce140， Pr141，Sm147，Eu153，Gb157，Tb159，Nd144， Dy163，Ho165，Er166，Tm169，Yb172，Lu175）含量的方法。[结果]各曲线呈良好线性关系，仪器检出限为0.002-0.01μg/L，方法检出限为0.1-0.6μg/kg，加标回收率为94.5%-116%，相对标准偏差为2.02%-14.21%。[结论]该方法质谱图简单，选择性和灵敏度好，定量准确，且具有精密度和准确度高、操作简单方便、回收率高、重现性好等优点，适合香蕉等水果中稀土元素的检测，对于指导香蕉生产、有效地种植，具有一定的理论及应用价值。

关 键 词：Rare earth elements BANANA ICP-MS 

分 类 号：S668.1[农业科学—果树学]