By adoption of a new method of film preparation with Ion Beam Thinner, comparatively satisfying observations of ultrastructure with Transmission Electron Microscope could be obtained, with observable advantages such as poison-free, time-saving and information-enriching compared with the traditional method of ectypal preparation.

Column-switching HPLC technique and its application to analysing complex samples;

Determination of metal elements in complex sample by microwave digestion-ICP-AES;

Chromatography and related hyphenated techniques have been one of the most important tools for complex sample analysis.