AI Article Synopsis
- Monodisperse polystyrene seed particles were created using a dispersion polymerization technique with styrene and ethanol, and later transformed into porous polymer beads through a one-step method.
- A novel hydrophilic weak cation exchange stationary phase for high performance liquid chromatography (HPLC) was developed using these beads via a new chemical modification process.
- The stationary phase exhibited effective ion exchange behavior and successfully separated and purified lysozyme from egg white in a single step, achieving over 96% purity and a bioactivity of 71,184 U/mg.
Article Abstract
Monodisperse polystyrene seed particles were prepared by dispersion polymerization of styrene in ethanol and water under a nitrogen atmosphere using benzoyl peroxide as an initiator. Then the monodisperse, porous poly (chloromethylstyrene-co-divinylbenzene) beads in the range of 6 - 15 microm were prepared by one-step swelling and polymerization method. Based on this media, a new hydrophilic weak cation exchange stationary phase (WCX) for high performance liquid chromatography was synthesized by a new chemical modification method. The stationary phase was evaluated on the behavior of ion exchange, separability, and hydrophilicity. Effects of the nature of salts and pH value on the separation and retention of proteins of the stationary phase were investigated in details. It was found that the WCX resin follows ion exchange chromatographic retention mechanism. It was also used for the rapid separation and purification of lysozyme from egg white in only one step. The purity was found more than 96% and specific bioactivity of the purified lysozyme was as high as 71 184 U/mg.
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