CERI L ODS HPLC Columns India Distributor
L-column series
Column developed in pursuit of convenience and high performance
L-column series is the column for reversed-phase high-performance liquid chromatography (RP-HPLC) that enabled separation only by hydrophobic interaction because of inhibition of the secondary interaction with residual silanol groups and metal impurities. In 1990, the new end-capping method using high-temperature silylation was invented. The performance of L-column ODS developed using this method was far superior to that of existing C18 columns, and it became a pioneer of the new-generation end-capping method. L-column2 ODS, surpassing L-column ODSin performance, was developed by upgrading the end-capping method. There is now a demand for RP-HPLC columns capable of both handling various issues of trace analysis due to the popularization of LC/MS(/MS) and providing advanced analytical precision. L-column2 ODS is an ideal column for meeting this demand.
Quality control
Our quality management system is assessed and verified to be in accordance with ISO 9001: 2008 for the design, development, production and supply of columns for gas chromatography and high performance liquid chromatography. We maintain probing inspection systems of raw materials and production processes at each step. All finished products are thoroughly inspected. These steps ensure a tight control of quality. We are continuously refining our operations to supply products for the satisfaction of our customers.
Line up
| Nano/micro column L-column Micro |
Semi-micro column |
Standard column |
Preparative column |
||
|---|---|---|---|---|---|
| I.D. |
0.075 mm
0.1 mm 0.2 mm 0.3 mm |
1.5 mm
2.1 mm |
3.0 mm
4.0 mm 4.6 mm 6.0 mm |
10.0 mm
20.0 mm |
|
| L-column2 ODS | 2µm 3µm 5µm |
0.2 mm, 0.3 mm o o |
o o o |
3.0 mm o o |
– o o |
| L-column2 C8 | 3µm 5µm |
o o |
o o |
o o |
– – |
| L-column2 C6-Phenyl | 3µm 5µm |
o o |
o o |
o o |
– – |
| L-column ODS | 3µm 5µm |
o o |
o o |
o o |
o o |
| L-column ODS-P | 5µm | o | o | o | – |
*Column accessories (Guard column, Pre-column filter)
*Metal-free column
Column size
We have columns with inner diameters for a wide range of uses from the nano column with a 0.075-mm inner diameter to the preparative column with a 20-mm inner diameter.
L-column2 ODS
-
Average particle size: 2µm, 3µm, 5µm Average pore size: 120 Å Surface area: 340 m2/g Carbon contents: 17 % Bonded phase: C18 (Octadecyl) End-capping: Yes USP category: L1 Range of pH: pH 2 – pH 9 
L-column2 ODS exceeds even the high performance of L-column ODS by virtue of its advanced new end-capping method. It accommodates the analysis of acidic, basic and chelating compounds.
- Sharper peaks for acidic, basic and chelating compounds due to extremely low silanol adsorption.
- Superior peak shapes in both acetonitrile/water and methanol/water mobile phases makes L-column2 ODSconvenient to use.
- Economical due to high durability in a wide range of pH and temperature.
- Uniform lot to lot reproducibility of analyses due to extensive quality control measures.
L-column2 C8
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Average particle size: 3 µm, 5 µm Average pore size: 120 Å Surface area: 340 m2/g Carbon contents: 10 % Bonded phase: C8 (Octyl) End-capping: Yes USP category: L7 Range of pH: pH 2 – pH 7.5 
L-column2 C8 is end-capped using the same advanced method used for L-column2 ODS. This column is easy to use because it provides sharp peaks in addition to it having high durability. L-column2 C8 is most suitable for reducing the analysis time of hydrophobic compounds and conserving solvent.
L-column2 C6-Phenyl
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Average particle size: 3 µm, 5 µm Average pore size: 120 Å Surface area: 340 m2/g Carbon contents: 13 % Bonded phase: Phenyl-Hexyl End-capping: Yes USP category: L11 Range of pH: pH 2 – pH 7.5 
L-column2 Metal-free column are achieved using the high performance packing materials and the combination of a glass-line stainless-steel tube and non-metallic frits.
Using L-column2 Metal-free column are improved the peak shape, carryover and S/N in the analysis of proteins, peptides and coordination compounds.
L-column ODS
-
Average particle size: 3µm, 5µm Average pore size: 120 Å Surface area: 340 m2/g Carbon contents: 17 % Bonded phase: C18 (Octadecyl) End-capping: Yes USP category: L1 Range of pH: pH 2 – pH 9 
In 1990, L-column ODS was introduced as a column whose secondary interaction with the residual silanol groups was eliminated by a new end-capping method* using high-temperature silylation. At the time, the performance of L-column ODS was far superior to that of existing C18 columns, and it became a pioneer of the new-generation end-capping method.
*Y. Sudo, Journal of Chromatography A, 737 (1996) 139.
*Y. Sudo, Journal of Chromatography A, 757 (1997) 21.
*Y. Sudo and T. Wada, Journal of Chromatography A, 813 (1998) 239.
L-column ODS-P
-
Average particle size: 5µm Average pore size: 300 Å Surface area: 150 m2/g Carbon contents: 9 % Bonded phase: C18 (Octadecyl) End-capping: Yes USP category: L1 Range of pH: pH 2 – pH 9
L-column ODS-P is ideal for the analysis of proteins and peptides. The base silica has a pore diameter of 300 Å. Adsorption is minimized and proteins and peptides elute with sharp peaks. Biological samples are often analyzed using 1 % TFA in the mobile phase and L-column ODS-P is exceptionally stable in strongly acidic mobile phase.
L-column Micro
L-column Micro is a nano/micro column with 0.075 mm– 0.3 mm I.D. It is a high-performance column that was manufactured by combining low-absorption packing materials, including L-column2 ODS, an originally developed packing technique and a column structure with a small dead volume.
[Non-sleeved type]
[PEEK-sleeved type]
[Cartridge trap column]
Guard column
Structure
[Cartridge guard column]
[Guard column]
Cartridge guard column
L-column2 ODS
| Particle size | Analytical column | I.D.(mm) | length (mm) | Specification | Cat. No. |
|---|---|---|---|---|---|
| 5µm | 1.5–3.0 mm I.D. | 2.0 | 5 | 3 cartridges | 752330 |
| 2.0 | 5 | Set (3 cartridges plus holder) | 752331 | ||
| 4.0–6.0 mm I.D. | 4.6 | 10 | 3 cartridges | 752050 | |
| 4.6 | 10 | Set (3 cartridges plus holder) | 752051 |
L-column2 C8
| Particle size | Analytical column | I.D.(mm) | length (mm) | Specification | Cat. No. |
|---|---|---|---|---|---|
| 5µm | 1.5–3.0 mm I.D. | 2.0 | 5 | 3 cartridges | 752333 |
| 4.0–6.0 mm I.D. | 4.6 | 10 | 3 cartridges | 752053 |
L-column2 C6-Phenyl
| Particle size | Analytical column | I.D.(mm) | length (mm) | Specification | Cat. No. |
|---|---|---|---|---|---|
| 5µm | 1.5–3.0 mm I.D. | 2.0 | 5 | 3 cartridges | 752336 |
| 4.0–6.0 mm I.D. | 4.6 | 10 | 3 cartridges | 752056 |
L-column ODS
| Particle size | Analytical column | I.D.(mm) | length (mm) | Specification | Cat. No. |
|---|---|---|---|---|---|
| 5µm | 1.5–3.0 mm I.D. | 2.0 | 5 | 3 cartridges | 652330 |
| 2.0 | 5 | Set (3 cartridges plus holder) | 652331 | ||
| 4.0–6.0 mm I.D. | 4.6 | 10 | 3 cartridges | 652050 | |
| 4.6 | 10 | Set (3 cartridges plus holder) | 652051 |
L-column ODS-P
| Particle size | Analytical column | I.D.(mm) | length (mm) | Specification | Cat. No. |
|---|---|---|---|---|---|
| 5µm | 1.5–3.0 mm I.D. | 2.0 | 5 | 3 cartridges | 652337 |
| 4.0–6.0 mm I.D. | 4.6 | 10 | 3 cartridges | 652057 |
Holder
| I.D.(mm) | Cat. No. |
|---|---|
| 2.0 | 652332 |
| 4.6 | 652052 |
Connection type: 1/16 inch Waters (W)
A tube and a connector, used to connect a guard column to an analytical column, are not attached.
Guard column
L-column2 ODS
| Particle size | Analytical column | I.D.(mm) | length (mm) | Cat. No. |
|---|---|---|---|---|
| 5µm | 4.0–6.0 mm I.D. | 4.0 | 10 | 752030 |
| 10.0–20.0 mm I.D. | 10.0 | 20 | 752110 |
L-column ODS
| Particle size | Analytical column | I.D.(mm) | length (mm) | Cat. No. |
|---|---|---|---|---|
| 5µm | 4.0–6.0 mm I.D. | 4.0 | 10 | 652030 |
| 10.0–20.0 mm I.D. | 10.0 | 20 | 652110 |
Connection type: 1/16 inch Waters (W)
A tube and a connector, used to connect a guard column to an analytical column, are not attached.
Pre-column filter
Structure
Pre-column filter
| Specification | Cat. No. | |
|---|---|---|
| First kit LC connection type: 1/16” Waters (W); Column connection type: 1/16” Waters (W) |
1 filter plus holder | 653002 |
| First kit LC connection type: UPLC®; Column connection type: 1/16” Waters (W)] |
1 filter plus holder | 653004 |
| Filters | 5 filters | 653003 |
