Method of packing chromatographic columns, packed chromatographic columns for use at high pressures and uses thereof

Patent metadata

Field	Value
Publication number	US-10254256-B2
Application number	US-201514872139-A
Country	US
Kind code	B2
Filing date	Oct 1, 2015
Priority date	Oct 1, 2015
Publication date	Apr 9, 2019
Grant date	Apr 9, 2019

Abstract

A method of packing a chromatography column, including: dispersing chromatographic media particles in a slurry solution to form a slurry, filling a chromatography column with the chromatographic media particles by introducing the slurry to the column and applying a pressure to pack the chromatographic media particles in the chromatography column. The slurry solution is preferably aqueous based slurry solution. The pressure is preferably applied and held substantially constant for a first period at a first pressure and is applied and held substantially constant for a second period, following the first period, at a second pressure higher than the first pressure.

First claim

What is claimed is:

1. A method of packing a chromatography column, comprising:
dispersing chromatographic media particles in an aqueous based slurry solution comprising at least 90% by weight water to form a slurry, wherein the aqueous based slurry comprises 0.1-10 parts by weight of surfactant based on 100 parts by weight of water;
filling a chromatography column with the chromatographic media particles by introducing the slurry to the column; and
applying a pressure to pack the chromatographic media particles in the chromatography column,
wherein the pressure is applied and held substantially constant for a first period at a first pressure in a range from 100 to 1500 bar, and is applied and held substantially constant for a second period, following the first period, at a second pressure in a range from 1500 to 6000 bar.

2. The method of claim 1 , wherein the aqueous based slurry solution further comprises, based on 100 parts by weight of water:
0-10 parts by weight of electrolyte or salt;
0-10 parts by weight of acid; and
0-10 parts by weight of base,
wherein at least one of the electrolyte or salt, the acid, and the base is present in an amount greater than 0 parts by weight.

3. The method of claim 1 , wherein the first pressure is in a range from 500 to 1500 bar.

4. The method of claim 1 , wherein the second pressure is in a range from 1500 to 4000 bar.

5. The method of claim 1 , wherein the first period is in a range from 0.1-100 hours and the second period is in a range from 0.1-100 hours.

6. The method of claim 1 , wherein the column has an internal diameter from 10 μm to 5 mm; and the column has a length from 20 mm to 10,000 mm.

7. The method of claim 1 , wherein the chromatographic media particles have a median particle diameter of 1 to 5 μm and are totally porous or superficially porous.

8. The method of claim 1 , wherein the aqueous based slurry solution is at least 95% by weight water.

9. The method of claim 1 , wherein the aqueous based slurry solution is at least 99% by weight water.

10. The method of claim 1 , wherein the aqueous based slurry solution contains organic solvent(s) in an amount not more than 10 parts by weight, based on 100 parts by weight of water.

11. The method of claim 1 , wherein the aqueous based slurry solution contains organic solvent(s) in an amount not more than 5 parts by weight, based on 100 parts by weight of water.

12. The method of claim 1 , wherein the aqueous based slurry solution contains organic solvent(s) in an amount not more than 1 part by weight, based on 100 parts by weight of water.

Assignees

• Dionex Corp
• Thermo Hypersil Keystone Llc

Inventors

• Liu Xiaodong
• Nguyen Jennifer M
• Sherant Ronald A
• Tracy Mark L

Classifications

• G01N30/56 Primary

  Packing methods or coating methods · CPC title

• B01D15/206 Primary

  Packing or coating · CPC title

• G01N2030/027

  Liquid chromatography · CPC title

• G01N2030/565

  slurry packing · CPC title