Peng Cheng¹, Manman Zhang², Yongjie Li³, Mingjin Tang⁴, Wenda Yang¹, Cheng Wu¹ and Jiayin Sun⁵, (1)Jinan University, Institute of Mass Spectrometer and Atmospheric Environment, Guangzhou, China, (2)Henan University of Chinese Medicine, Department of Pharmacy, Zhengzhou, China, (3)University of Macau, Department of Civil and Environmental Engineering, Macau, China, (4)Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, State Key Laboratory of Organic Geochemistry, Guangzhou, China, (5)Jinan university, Institute of Mass Spectrometer and Atmospheric Environment, Guangzhou, China