高纯稀土中非稀土杂质分析方法研究 Ⅱ,高纯氧化钇中痕量非稀土杂质的富集与测定

高纯稀土中非稀土杂质分析方法研究 Ⅱ,高纯氧化钇中痕量非稀土杂质的富集与测定 PRECONCENTRATION AND DETERMINATION OF TRACE AMOUNTS OF NON-RARE EARTH ELEMENTS IN HIGH-PURITY YTTRIUM OXIDE（Ⅱ） 廖振环 Liao Zhenhuan first-author 江祖成 Jiang Zucheng 李琳 Li Lin 戈艺戎 Guo Yirong 采用活性炭选择吸附二乙基二硫代氨基甲酸盐（DDTC）的金属络合物,而使金属杂质富集并与基体有效分离。用HNO 3 （1∶1）解脱被吸附在活性炭上的金属杂质,ICP光谱法同时测定高纯氧化钇中痕量的非稀土杂质Cu,Fe,Cr、V,Pb和Ni等元素。方法的检出限为0.018—0.27μg/g,相对标准误差为0.9—4.1%（n=11）,回收率经多次试验均在81—117%范围内。结果表明,本法具有简便、灵敏、准确,基体干扰小等优点。可用于高纯Y 2 O 3 中痕量非稀土杂质的测定。 A method for thc preconcentration of trace amounts of non-rare earth eiements in high-purity yttrium oxide with active carbon and their determin- ation by ICP-AES has been described, This method is based on selective adsorption of metallic’ diethyldithiocarbamates on the active carbon and desor-ption from it with HNO 3 ,and the eluate is then determined by [CP-AES. The detection limits of Cu,Fe,Cr,Ni,vand Pbare 0.018 to 0.27 ;μg/grespeetively; the relative standard deviations （n=11） is in the range of 0. 9-4.1%;The recovery of the method is 81—117%. The method has the advantages in sim-plicity, sensitivity and accuracy. 高纯稀土 元素富集 ICP光谱法 high-purity rare-earth preconcentration of elements ICP-AES method 1988-01-01 2021-04-01 1