Citation: Liu, Jingjuan; Ji, Guanfeng; Xiao, Jiannan; Liu, Zhiliang (2017). Ultrastable 1D Europium Complex for Simultaneous and Quantitative Sensing of Cr(III) and Cr(VI) Ions in Aqueous Solution with High Selectivity and Sensitivity.. Inorganic chemistry, 56, pp. 4197-4205.