电感耦合等离子体原子发射光谱法测定金属钼中10种微量元素  

Determination of Elements of Microamounts in Molybdenum Metal by Inductively Coupled Plasma Atomic Emission Spectrometry

作　　者：侯列奇[1] 李洁[1] 

机构地区：[1]中国核动力研究设计院核燃料及材料国家重点实验室,成都610005

出　　处：《理化检验（化学分册）》2009年第2期148-150,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：以阳离子交换树脂分离钼与待测元素，用电感耦合等离子体原子发射光谱法测定金属钼中铝、钡、钙、钴、铜、铁、锰、镍、钒和锌的含量。对阳离子交换柱的制备、分离条件、分析线的选择、载流酸度和样品酸度等分析条件做了试验并予以优化。取样1g时，10种元素的测定范围在10-160ug·g^-1之间，平行测定11次，方法的回收率在94．2％～110．0％之间，相对标准偏差（n=6）在3．3％～7．9％之间，测定限（10S／N）均为0．10mg·L^-1。Micro-amounts of Al, Ba, Ca, Co, Cu, Fe, Mn, Ni, V and Zn in molybdenum were separated from the matrix by cation exchange resin, and determined by ICP-AES. Preparation of the cation exchange column and analytical conditions, including conditions of separation, choice of analytical spectral lines as well as the acidity of sample and carrier solutions were tested and optimized. Range of determination for all the 10 element was in the range of 10--160 ug · g^-1, on the base of taking 1 g sample. Values of determination limit （10S/N） for these elements were same and attaining to 0. 10 mg · L^- 1. Results of recovery test found were in the range of 94. 2%- 110. 0%. Precision tests were made giving values of RSD＇s （n= 11） in the range from 3. 3% to 7. 9%. No significant difference was found between the results obtained by this method and by the AAS method.

关 键 词：电感耦合等离子体原子发射光谱法 阳离子交换树脂 微量元素 金属钼 

分 类 号：O657.3[理学—分析化学]