Citation: | Liu Yuhong, Yue Xiaoyun, Li Jingjie, Zhang Zangshu. Determination of Niobium in Baotou Iron Ores and Its Slags by Spectrophotometry with Sulfochlorophenol S[J]. Chinese Journal of Engineering, 1997, 19(3): 243-247. DOI: 10.13374/j.issn1001-053x.1997.03.005 |