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本文提出石油亚砜-硫氰酸铵萃取色谱定量分离钇和其他稀土元素的方法。选择了某些色谱参数,测定了其他稀土元素对钇的分离因数。将涂渍着石油亚砜的硅烷化硅球装于色谱柱中(550mm×14.7mm),在16—40℃时,用0.6M硫氰酸铵洗提样品中的钇,然后用EDTA滴定。对三个合成样(含Y_2O_34.8％—65％)和四个实际样品(含Y_2O_326.03—65.68％)进行了分析,相对标准偏差为0.07—0.98％。
This paper presents a method for the quantitative separation of yttrium and other rare earth elements by petroleum sulfoxide - ammonium thiocyanate extraction chromatography. Some chromatographic parameters were chosen to determine the separation factor of yttrium from other rare earth elements. Silanized silica spheres coated with petroleum sulfoxide are loaded into a column (550 mm x 14.7 mm) and the yttrium in the sample is eluted with 0.6 M ammonium thiocyanate at 16-40 ° C prior to titration with EDTA. The three synthetic samples (including Y 2 O 34.8% -65%) and four actual samples (Y 2 O 3 36.03-65.68%) were analyzed with relative standard deviations of 0.07-0.98%.