研资局高级研究学者计划 | 教资会及研资局奖项

Biography
(只提供英文版)

Chair Professor in Department of Chemistry at The Hong Kong University of Science and Technology
Research interests include atmospheric analytical chemistry; development of analytical methods for atmospheric measurements; chemical characterization of urban and continental aerosols; transformation of organic compounds in air; source apportionment of air pollutants; and kinetic modeling of atmospheric reactions
SRFS project — aims to employ advanced mass spectrometry and chemometric analysis to study these elements at multiple levels, from broad organic/inorganic separation with high mass completeness to detailed molecular identification. By integrating these multi-level techniques, the research will provide a wholistic picture of aerosol chemical composition and uncover previously undetected molecular species. This strategy has the potential to make significant and innovative advances in aerosol chemistry and the broader field of environmental chemistry.
Awards and Honours:
- RGC Senior Research Fellow (2025)
- Fellow, Asian Aerosol Research Assembly (AARA) (2022)
- Distinguished alumna award, Department of Environmental Sciences & Engineering, Univ. North Carolina-Chapel Hill (2021)
- School of Science Service Award, HKUST (2018)
- Atmospheric Chemistry Colloquium for Emerging Senior Scientists (ACCESS)/Gordon Research Conference (1997)

Project Title
(只提供英文版)

Analytical Chemistry of Multi-level Chemical Speciation of C, N, and S in Atmospheric Aerosol Samples

赞词

理解大气气溶胶组成对预测环境与健康影响及制定减缓策略至关重要。完整评估需同时达成全面核算总质量（质量完整性）与分子层级的详细识别；过去研究少能兼顾，尤忽视质量完整性。

本计划结合先进质谱与化学计量学，多层次表征碳（C）、氮（N）、硫（S）：从高质量覆盖的有机/无机分离起步，进而以离子片段为基础的多分类形态分析与超高解析质谱，最后透过串联色谱–质谱实现对单分子的鉴定。

这项计划将聚焦三项挑战：
(1) 有机/无机二分形态分析工具不足，限制全面元素分析；这项计划将开发可同时进行 C/N/S 二分形态分析的原型仪器;
(2) 基于离子碎片的多分类形态分析在真实气溶胶上的质量与元素校准不足；这项计划将建立多样化「参考混合物」强化校准; 及
(3) 现行技术未能捕捉的未知分子所占比例尚未量化；这项计划将运用多层次表征方法估算「未知」部分范围与特征。

这项计划最终目标是建立多层次化学形态分析的框架，同时实现全面质量覆盖与高度的分子特异性；凭借团队数十年经验与先进工具，本研究将弥补关键知识缺口，推动大气气溶胶化学与环境化学的发展。