On-line cation-exchange preconcentration and capillary electrophoresis coupled by tee joint interface.

@article{Zhang2005OnlineCP,
  title={On-line cation-exchange preconcentration and capillary electrophoresis coupled by tee joint interface.},
  author={Zhao-Xiang Zhang and You-zhao He},
  journal={Journal of chromatography. A},
  year={2005},
  volume={1066 1-2},
  pages={
          211-8
        }
}
An on-line preconcentration method based on ion exchange solid phase extraction was developed for the determination of cationic analytes in capillary electrophoresis (CE). The preconcentration-separation system consisted of a preconcentration capillary bonded with carboxyl cation-exchange stationary phase, a separation capillary for zone electrophoresis and a tee joint interface of the capillaries. Two capillaries were connected closely inside a 0.3 mm i.d. polytetrafluoroethylene tube with a… CONTINUE READING