WANG Li-Xin1,2, QIAN Yang-Yi2, FAN Wan-Zhen3, XU Wen-Hui4, TANG Wen-Xiu2
1. School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China;
2. Institute of Chemistry Teaching and Resource, South China Normal University, Guangzhou 510006, China;
3. Dongguan Tangxia High School, Dongguan 523710, China;
4. Dongguan Senior High School, Dongguan 523000, China