WANG Wen-Liang, LI Dong-Sheng, WANG Ji-Wu, XUE Gang-Lin, SHI Qi-Zhen
2004, Vol. 62(16): 1557-1560
1. School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062;
2. Department of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000;
3. Department of Chemistry, Northwest University, Xi'an 710069
null