Zhen Liu, Tibebe Lemma, Janusz Pawliszyn*. Capillary isoelectric focusing coupled with dynamic imaging detection: a one-dimensional separation for two-dimensional protein characterization. Journal of Proteome Research, 2006, 5, 1246-1251.

Zhen Liu, Janusz Pawliszyn*. Microdialysis hollow fiber as a macromolecule trap for on-line coupling of solid phase microextraction and capillary electrophoresis. Analyst, 2006, 131, 522-528.

Zhen Liu*, Janusz Pawliszyn. On-line coupling of solid phase microextraction and capillary electrophoresis. Journal of Chromatographic Science, invited review, 2006, 44, 366-375.