摘要
20132374 Dong Yongsheng(Third Institute of Geologic Mineral Exploration and Development of Inner Mongolia Autonomous Region,Hohhot 010050,China);Cheng Haoyang Determination of Nb,Ta,Th,and Zr by X-Ray Fluorescence Spectrometry(Jilin Geology,ISSN1001-2427,CN22-1099/P,31(4),2012,p.113-114,129,3tables,2refs.)Key words:X-ray fluorescence spectra。
