Typical research interests extended into a few analytical techniques and their developments. Primary research focus is on chromatography and mass spectrometry, specifically in multidimensional chromatography, covering fundamental method development and a broad application base. The developed multidimensional separation technologies are applied in many areas/disciplines such as plant metabolomics, human metabolomics, plant natural products, essential oils, and others. Apart from multidimensional chromatography, our group also innovates and develops different analytical approaches for the trace analysis of environmental pollutants, pesticide residues, food additives, contaminants, mutagens, and carcinogens. We also have a keen interest in authenticity assessment of food and plant-derived products using enantioselective chromatography approaches.