论文部分内容阅读
前言氧化钕是生产钕玻璃,钇铝石榴石的主要原料,其纯度的好坏直接影响激光材料的性能。自V. A. Fassel于1948及1952年使用石墨粉与试样混合的方法测定氧化钕中的钐及镨以来;Y. Osumi等曾采用氯化铯-石墨粉缓冲剂在氩控制气氛下,使用GEM-340大型光栅光谱仪同时测定氧化钕中十一个稀土杂质。但此法由于采用光量计,所选的分析线在摄谱法中大多数灵敏度不够高或受基体线强烈干扰,无法采用;而在常用的直接光谱法中,也需在摄谱仪线散率不少于1.25(?)/mm时才能进行测定,且仅能测
Preface Neodymium oxide is the main raw material for the production of neodymium glass and yttrium aluminum garnet. The purity of neodymium oxide directly affects the performance of laser materials. Since VA Fassel in 1948 and 1952 using the method of mixing graphite and sample neodymium oxide in the determination of samarium and praseodymium since; Y. Osumi had used cesium chloride - graphite buffer under argon control atmosphere, the use of GEM- 340 large grating spectrometer simultaneous determination of eleven rare earth oxide neodymium impurities. However, this method due to the use of light meter, the selected analysis line in the spectrometry most of the sensitivity is not high enough or subject to strong interference with the substrate line, can not be used; and in the commonly used direct spectroscopy, but also in the spectrograph scattered Rate of not less than 1.25 (?) / Mm can be measured, and only measurable