Membrane supports as the stationary phase in high-performance immunoaffinity chromatography.
The membrane with a composite of cellulose grafted with acrylic polymers formed by polymerizing a glycidyl methacrylate in the presence of dispersed cellulose fiber was prepared as the stationary phase; the column (40 x 4 mm i.d.) which was compatible with the HPLC instrument was packed with pieces of the cut membrane. Protein A and human IgG were immobilized on the membrane stationary phase. The column based on the membrane support provided us good reproducibility, high efficiency, and low back pressure. High-performance immunoaffinity chromatographic analysis of human IgG in serum and polyclonal antibody to human IgG raised in goat was performed within 2.5 min. The fast-speed immunoaffinity analysis was developed by increasing the flow rate of the mobile phase and decreasing the duration time for the switch of the mobile phase; an operation for immunoaffinity analysis of human IgG could be finished within 30 s.[1]References
- Membrane supports as the stationary phase in high-performance immunoaffinity chromatography. Zhou, D., Zou, H., Ni, J., Yang, L., Jia, L., Zhang, Q., Zhang, Y. Anal. Chem. (1999) [Pubmed]
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