累积进样石墨炉原子吸收光谱法直接测定喷气燃料中痕量钒  

Direct Determination of Trace Vanadium in Jet Fuels by Graphite Furnace Atomic Absorption Spectrometry with Accumulative Sampling

作　　者：王书俊[1] 王志华[1] 李昂 

机构地区：[1]北京化工大学化工资源有效利用国家重点实验室,北京100029 [2]曼氏(天津)香精香料有限公司,北京100004

出　　处：《分析测试学报》2006年第3期77-79,82,共4页Journal of Instrumental Analysis

摘　　要：采用累积进样石墨炉原子吸收光谱法直接测定喷气燃料中痕量钒。累积直接进样具有富集样品中痕量金属元素的作用，方法的检出限低、灵敏度高，具有良好的精密度和准确度，回收率在96％，102％之间，相对标准偏差为1．4％～4．4％（n=6）。用于喷气燃料中痕量钒的直接测定，获得了满意的结果。A method for the determination of trace vanadium in jet fuels by graphite furnace atomic absorption spectrometry with accumulative sampling was developed. By accumulative sampling, the vanadium concentration on the graphite tube was enriched by a factor of four in this work. The detection limit is 0, 11 ng（3σ）. The recovery range is 96% - 102% witb relative standard deviations from 1.4% to 4.4% （ n = 6）. The determination results of trace vanadium in some jet fuels are satisfactory. This analytical method is simple, rapid, accurate, and convenient.

关 键 词：钒 石墨炉原子吸收 喷气燃料 痕量分析 

分 类 号：O657.31[理学—分析化学] O614.511[理学—化学]