HPLC Columns

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Optimal ODS-L
Optimal ODS-L has a slightly lower carbon loading (15%) than the ODS-H and is useful for the analysis of a wide range of hydrophilic compounds which are normally not retained by other C18 based packing material.

One particular advantage is that even pure water can be used as the eluent without the need for any organic modifier. Highly polar samples only soluble in water may be separated by this packing material, e.g. sugars and other saccharides. Optimal ODS-L is also as useful for analyzing hydrophobic samples which are currently chromatographed on competitor C8 materials. Like ODS-H, this packing material is also fully end-capped.

Optimal ODS-L is also based on the same high purity silica as the Optimal ODS-H material which ensures the high degree of inertness and lack of peak tailing.

Optimal ODS-H
Optimal ODS-H is the most generally applicable of the Optimal phases and can be used for both specialist applications involving acid and basic compounds or mixtures of both.

Optimal ODS-H is also particularly well suited to general purpose method development.

Optimal® HPLC Columns

The new Optimal® range of HPLC columns represents the next step forward in porous silica engineering, beyond the so-called "new generation" high purity materials.

The current new generation materials are based on an alternative synthesis route which yields a high purity product with excellent inertness characteristics. However, Optimal is manufactured using an entirely new process based on well established, tried and tested silica production techniques, coupled with new refining technologies ultimately leading to a superior material, combining the advantages of both the new and traditional approaches to silica manufacturing.

Universal Integral Cap-Guard Guard Cartridge System

The universal integrated Cap-Guard guard cartridge system has the benefit of screwing directly onto the top of the column without the use of extra connections and unions. The guard cartridge holder costs £80.00 and is used with 10mm guard cartridges, which are sold in packs of three for £95.00.

Other HPLC Columns

In addition to the above ranges, Charlton Scientific supplies HPLC columns packed with other, well known packing materials. All dimensions are available, including prep & semi-prep columns. Contact us with your requirements for a competitive quote.

Some of the available packing materials are:

CS SIL HPLC Columns

The CS SIL C18 and C8 HPLC columns are manufactured in the UK for Charlton Scientific. These columns are ideal for customers who want a high quality, cost effective column and do not need to use a specified packing material.

4.6mm Internal diameter columns, 100A, 5um packing

Phase	150mm	250mm
C8	L810-4615-5	L810-4625-5
C18 (ODS)	L1810-4615-5	L1810-4625-5
Price	£148.35	£172.45

Also available in 3.2mm and 2.1mm internal diameter, and 3um porosity

4.6mm Internal diameter columns, 120A, 5um packing

Phase	20mm	50mm	100mm	150mm	250mm
Silica	LC-5SA102	LC-5SA105	LC-5SA110	LC-5SA115	LC-5SA125
C8	LC-5SF102	LC-5SF105	LC-5SF110	LC-5SF115	LC-5SF125
ODS-H	LC-5SG102	LC-5SG105	LC-5SG110	LC-5SG115	LC-5SG125
ODS-L	LC-5SH102	LC-5SH105	LC-5SH110	LC-5SH115	LC-5SH125
Price	£41.00	£153.00	£156.00	£180.00	£207.00

Also available in 3.2mm and 2.1mm internal diameter at the same price, and 3um porosity