氩氧气氛-直流电弧放电中的氟化反应及其应用

氩氧气氛-直流电弧放电中的氟化反应及其应用 THE STUDY OF INFLUENCE FACTORS ON FLUORINATING REACTION UNDER Ar-O 2 CONTROLLED ATMOSPHERE IN D.C. ARC DISCHARGE 胡斌 Hu Bin 1 first-author 江祖成 Jiang Zucheng 1 廖振环 Liao Zhenhuan 1 曾云鹗 Zeng Yun’e 1 武汉大学化学系 武汉大学化学系 Department of Chemistry, Wuhan University Department of Chemistry, Wuhan University 系统地研究了影响直流电弧放电中氟化反应的因素（氟化剂,电极温度,气氛,基体等）并得到了下列结论:①氟化铜（含两个结晶水）和碱式氟化铜是所研究的氟化剂中最为有效的氟化剂,它们的存在增强了La、Cr光谱线强度一个数量级;②基体对电弧放电中的氟化反应有很大的影响,而碳粉是测定La、Cr最有效的基体;③据此,分析了高纯Y 2 O 3 中非稀土杂质以及谷物试样中的微量元素,取得了满意的结果。 The influence factors （fluorinating reagent, electrode temperature, atmo sphere, matrix）on fluorinating reaction in d.c. arc discharge have been studied systematically, and adequate conclusions are drown: （1） The CuF 2 ·2H 2 O and CuOHF are very effective fluorinating reagents,their presence may increase spectral line intensities of refractory elements, such as La, Cr, by about one order of magnitude; （2） The matrix appears a large influence on fluorinating reaction in d.c. arc discharger （3）Carbon powder is the most effective matrix to determine La, Cr; （4）These results have been applied to analyse high purity REE and biological materials and the satisfactory results have been got. 氟化反应 直流电弧放电 影响因素 Fluorinating reaction d. c, arc discharge influence factors 1991-02-01 2021-04-01 2