Silica-Based Columns (ODS Columns)

ODSpak ODSpak columns are the standard type columns which has been sold for more than 20 years.
Silica These columns are high performance versions of Shodex silica C18 series. High purity silica gel is used as packing material and residual silanols are fully end-capped. Their separation properties are thus better than the traditional silica C18 series in the analysis of metal complexes and basic substances.
C18M
 C18M columns use packing material to which C-18 groups are monomerically bonded. They have the widest range of applications among the ODS columns.
C18P
 C18P columns use packing material to which C-18 groups are polymerically bonded making them acid resistant (usable to pH2.0). They are suitable for analysis of vitamins, etc.
C18M
4V/D
 Consists of three C18M 4D columns, each packed with gel from different lots; for use in validation.

(Standard Columns)
Product name Plate number
(TPN/column)		 Particle size
(micron)		 Carbon
(%)		 Size(mm)
ID x Length
ODSpak F-411
ODSpak F-511
ODSpak F-411/S
> 8,000
> 14,000
> 10,000
 5
5
3		 14
14
14
4.6 x 150
4.6 x 250
4.6 x 100
Silica C18M 4D
Silica C18M 4E
Silica C18M 2D
> 10,000
> 16,000
> 9,000
 5
5
5		 16
16
16
4.6 x 150
4.6 x 250
2.0 x 150
Silica C18P 4D
Silica C18P 4E
Silica C18P 2D
> 10,000
> 16,000
> 9,000
 5
5
5		 17
17
17
4.6 x 150
4.6 x 250
2.0 x 150
Silics C18M 4D
> 10,000
 5 16
4.6 x 150

(Preparative Columns)(Remark)
Product name Particle size
(micron)		 Carbon
(%)		 Size(mm)
ID x Length		 Standard
column
Silica C18M 10E
Silica C18M 20E		 5
5		 16
16
10.0 x 250
20.0 x 250
C18M
C18M
* Pore size of all silica-based columns described in this page is approximately 100 angstrom.

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