Method for sterilizing liquid chromatography resins highly resistant to oxidation and a sterilization solution for use therein
First Claim
1. A method for sterilizing a chromatography resin that is highly resistant to oxidation by strongly oxidizing agents without generation of toxic end products, said method comprising the step of washing the chromatography resin with an aqueous solution of a percarboxylic acid, said aqueous solution including an acetate buffer in a concentration of about 0.1 to 2M.
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Abstract
A method for sterilizing liquid chromatography resins that are highly resistant to oxidation by strongly oxidizing agents and a sterilization solution for use therein. In a preferred embodiment, the invention comprises contacting an oxidant-resistant chromatographic resin with an aqueous solution of peracetic acid and up to 40% ethanol. In particular, where the solution is to be used to sterilize a positively charged ion-exchange resin, the solution preferably additionally includes an acetate buffer of a sufficient ionic strength to prevent adsorption of the peracetic acid ions on the resin.
35 Citations
27 Claims
- 1. A method for sterilizing a chromatography resin that is highly resistant to oxidation by strongly oxidizing agents without generation of toxic end products, said method comprising the step of washing the chromatography resin with an aqueous solution of a percarboxylic acid, said aqueous solution including an acetate buffer in a concentration of about 0.1 to 2M.
- 12. A method for sterilizing a chromatography resin that is highly resistant to oxidation by strongly oxidizing agents without generation of toxic end products, said method comprising the step of washing the chromatography resin with an aqueous solution of a percarboxylic acid, said aqueous solution including an acetate buffer in a concentration of about 0.1 to 2M and an alcohol.
Specification