LIU Bao1, NONG Ying2, CHEN Yan-Yuan1, LUO Wei-Qiang1, TAO Qiang1, LU Hong-Qing1
1. Deparmtent of Chemistry, Guangxi University for Nationnalities, Nanning 530006, China; 2. Deparmtent of Politics and International Relations, Guangxi University for Nationnalities, Nanning 530006, China