Acta Phys. -Chim. Sin. ›› 2007, Vol. 23 ›› Issue (06): 955-958.doi: 10.3866/PKU.WHXB20070632
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CAO Chen-Zhong; LIU Jin-Ling
School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan Province, P. R. China