On March 1st, Gan and Shizhen attended the Sixth Environmental Analytical Chemistry Symposium in Wuxi. During their visit, they also had the opportunity to meet with Prof. Zhenyu Wang at the School of Environment & Ecology, Jiangnan University. They toured the advanced laboratory and engaged with Prof. Wang’s research group. The visit was further enriched by spending time in Wuxi with Prof. Zou and Mr. Zhang. Our sincere thanks to Prof. Wang’s group for their warm hospitality.