The preparation method of chitosan magnetic bead

The preparation method of chitosan magnetic bead

  • CN 106,215,880 A
  • Filed: 08/31/2016
  • Published: 12/14/2016
  • Est. Priority Date: 08/31/2016
  • Status: Active Application
First Claim
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1. the preparation method of a chitosan magnetic bead, it is characterised in that comprise the following steps:

  • (1) by trivalent iron salt and ethylene glycol mix and blend, settled solution A is formed;

    (2) chitosan and Disodium oxalate. are added in ethylene glycol, mix and blend, form settled solution B;

    (3) after step (1) gained solution A being passed through nitrogen bubble 0.5-2 hour under stirring, by molten for step (2) gainedLiquid B adds in solution A, mixed solution is heated to 160-200 DEG C, sustained response 12-48 hour under stirring condition;

    (4) stop stirring and heating, collect precipitate and carry out washing and be drying to obtain chitosan magnetic bead.

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