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US 2022/0023832 A1Published application
Guard column and method for producing guard column
AssigneeShowa Denko K.K.
InventorsHirotsugu NAKANISHI, Ritsuko WAKAYAMA
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Abstract
Provided is a guard column including a filling part having a length of 2.0 cm to 3.5 cm formed of a filler, in which the filler is made of porous silica gel having a hydrophilized surface and an average particle size of 1.5 μm to 2.5 μm, and a pressure difference when an aqueous solution is fed at a linear flow rate of 2.1 cm/min is 4.0 MPa or more.
Claims11
A guard column, comprising
- a filling part having a length of 2.0 cm to 3.5 cm formed of a filler, wherein
- the filler includes porous silica gel having a hydrophilized surface and an average particle size of 1.5 μm to 2.5 μm, and
- a pressure difference when an aqueous solution is fed at a linear flow rate of 2.1 cm/min is 4.0 MPa or more.
Dependencies are inferred from the claim text.