微波消解-火焰原子吸收光谱法测定蒌叶中的微量元素  

Determination of Microelements in the Leaf of Piper betle by Flame Atomic Absorption Spectroscopy with Microwave Digestion

作　　者：王呈文[1] 纪明慧[1] 舒火明[1,2] 陈光英[1] 何猛雄[1] 邓祥艳[1] 韩彩密[1] 

机构地区：[1]海南师范大学化学与化工学院,海口市龙昆南路99号571158 [2]海南经贸职业技术学院

出　　处：《光谱实验室》2013年第3期1326-1330,共5页Chinese Journal of Spectroscopy Laboratory

基　　金：海南省重大科研项目(ZDZX20100007)

摘　　要：用浓硝酸微波消解处理样品,火焰原子吸收光谱法测定蒌叶中Mg、Ca、K、Cu、Pb、Cr、Cd、Zn、Mn和Ni10种微量元素的含量。测定结果表明,所测的各微量元素的校准曲线的相关系数为0.9990—0.9998,回收率为97.10%—101.01%,方法检出限为0.0036—0.0429mg/L,相对标准偏差小于2.0%。该方法操作简便、快速,结果准确,是蒌叶中微量元素含量测定的理想方法。The contents of ten microelements in the leaf of Piper betle,including Mg,Ca,K,Cu, Pb,Cr,Cd,Zn,Mn and Ni were analyzed by flame atomic absorption spectroscopy with microwave digested by HNO3. The correlation coefficient of the calibration curve,recovery range and detection limit of each microelement was 0. 9990-0. 9998, 97. 10%-101. 01%, 0. 0036-0. 0429mg/L, respectively. The relative standard deviation of each microelement was less than 2.0%. The method is simple, rapid and accurate results, which is the ideal method for determination of contents of microelements in the leaf of Piper betle.

关 键 词：蒌叶 微量元素 火焰原子吸收光谱法 微波消解 

分 类 号：O657.31[理学—分析化学]