Preparation and evaluation of a porous monolithic capillary column for microextraction of estrogens from urine and milk samples online coupled to high-performance liquid chromatography.

@article{Hu2012PreparationAE,
  title={Preparation and evaluation of a porous monolithic capillary column for microextraction of estrogens from urine and milk samples online coupled to high-performance liquid chromatography.},
  author={Yuling Hu and Yifeng Fan and Gongke Li},
  journal={Journal of chromatography. A},
  year={2012},
  volume={1228},
  pages={205-12}
}
A porous monolithic capillary column based on poly (methacrylic acid-co-ethylene glycol dimethacrylate) (poly (MAA-co-EGDMA)) was prepared using methanol and polyethylene glycol 6000 as mixed porogens. The monolith has the characteristics of good permeability, high extraction efficiency and long lifetime. Improved permeability of the monolith could realize… CONTINUE READING