Hello, Dr. Yang Haifeng, lecturer of subject chemistry at Shanghai Normal University. According to Baidu Encyclopedia, Dr. Yang Haifeng is a professor and tutor of analytical chemistry master students. At present, he is the Party Secretary of the College of Chemistry and Materials Science, the academic leader of the school's academic innovation team, the head of the analytical chemistry master's program, and the director of the innovation laboratory of the Shanghai Chemical Experiment Teaching Demonstration Center.