FAAS法测定芦笋果实中的微量元素  

Determination of Microelements in Fruit of Asparagus officinalis Linn by FAAS

作　　者：吴冬青[1] 李彩霞[2] 安红钢[1] 张春燕[2] 

机构地区：[1]西部资源环境化学重点实验室河西学院化学系,甘肃张掖734000 [2]河西学院生物系,甘肃张掖734000

出　　处：《广东微量元素科学》2007年第2期43-46,共4页Trace Elements Science

基　　金：甘肃省教育厅科研资助项目(0509-02)

摘　　要：采用V(浓硝酸)+V(高氯酸)=4+1混酸溶解消化样品,用火焰原子吸收光谱法对芦笋果实中K、Mg、Ca、Na、Fe、Zn、Mn、Cu和Co 9种微量元素进行了分析测定,研究了测定不同元素仪器的最佳工作条件、方法的准确性和精密度。结果表明,芦笋果实中Ca、Mg、K、Cu、Fe、Zn、Mn、Na和Co含量分别为0.107、1.228、46.536、0.001、0.088、0.017、0.298、0.382、0.022 mg.g-1,方法回收率(n=7)在98.1%～102.2%之间,RSD值(n=7)在0.20%～1.05%,该法快速、简单,准确度和精密度均较好,能达到分析要求。The nine microelements in fruit of Asparagus officinalis Linn were determined by FAAS. The sample was digested with V（HNO3）＋V（HClO4）=4＋1 before determination. The work conditions, accuracy and precision of the method were studied. The experimental results show that the content of Ca, Mg, K, Cu, Fe, Zn, Mn, Na and Co were 0. 107, 1.228, 46.536, 0.001, 0.088, 0.017, 0.382, 0.022, 0.298mg·g^-1. Therecovery（n=7） is98.1% 102.2%, RSD（n=7） is 0.20% -1.05%. The method has great precision and accuracy so that it is able to reach requirements for analysis.

关 键 词：FAAS法 芦笋果实 微量元素 

分 类 号：O657.3[理学—分析化学]