摘要
应用Ｐ２０４－ＨＮＯ３和ＴＢＰ－ＮＨ４ＳＣＮ萃取色层法从纯度为９９．９９８％的高纯Ｙ２Ｏ３中分别分离出轻稀土Ｌａ－Ｄｙ和重稀土Ｈｏ－Ｌｕ杂质元素，并采用ＸＲＦ法测定它们的含量。方法的测定下限为７×１０－２－８×１０－３μｇ，精密度ＲＳＤ为４％，全程回收率为９８％－１０２％。
The extraction chromatography using levextrel resin P204-HNO3 and TBP-NH4SCN is used to seperate trace light earth (La -Dy), heauy earth (HO-Lu) and Y elements from high pure Y2O3, respectively. After that, all the 14 trace rare earth elements are determined by XRF. The minium determination limit can be decreased to 7×10-2 - 8 ×10-3 μg, the precision is about 4 % and the chemical recovery is in the range of 98% - 102 %.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1996年第3期243-248,共6页
Atomic Energy Science and Technology
关键词
XRF
三氧化二钇
稀土杂质
XRF High purity Y_2O_3 P204 TBP Rare earth elements
