Aqueous Column Accessories

A variety of accessories are available to increase the utility of our aqueous series chromatography columns. These include Packing Reservoirs, Column Extender, Sample Baskets, and Fittings and Valves.

Packing Reservoirs

Packing reservoirs are available for all of our columns. When connected to a column with a column extender (not included, see below) they allow a column to be slurry packed in a single pour. Since the ID of the column, column extender, and packing reservoir neck are all the same there is no disruption of the packing at the end of the column.

The only wetted part of the packing reservoir is borosilicate glass. The chemical compatibility of a system using a packing reservoir will be determined by the endplates and/or column extender used.

Column ID Reservoir Volume Reservoir Part Number
0.6 cm 125 ml

0.9 cm 300 ml

1.5 cm 300 ml

2.5 cm 1000 ml

5.0 cm 3 L

Column Extenders

Column extenders are used to join two columns of the same diameter to form one longer column. The inner bore of the column extender matches that of the columns so that there is a minimal disruption of the bed at the extender.

To use a column extender to join 2 columns, simply remove the lower end plate from the upper column and the upper end plate from the lower column. The column extender is threaded on both ends and simply screws into the places previously occupied by the endplates. Using this method you can join as many column bodies as desired into a single interior bore, but since column bodies as long as 100 cm are available in every diameter, ceiling height usually limits you to 2 or 3 bodies.

The column extender is a wetted part of any system in which it is used. The black aqueous column extenders are made from polypropylene and the only other wetted material is nitrile rubber.

Column extenders can also be used to connect a packing reservoir to a column. This lets you cleanly back a column with minimal bed disruption without the need for excessive ceiling clearance.

Column ID Extender Part Number
0.6 cm 124339

0.9 cm 124340

1.5 cm 124342

2.5 cm 124344

5.0 cm 124346

Sample Baskets

Sample Application Baskets are acrylic baskets with mesh bottoms that sit on top of the column packing. They are used when the column is not full of media and prevent the top lay of packing from being disturbed by changes in the eluant flow.

A sample basket is preferrable to an adjustable plunger when the column bed changes size during a separation. Many ion exchange media can have significant size changes when the ionic form of the media changes. Using a plunger or a full column can either case a void to develop at the top of the column (if the bed contracts) or cause damage to the column (if the bed expands).

Replacement nylon mesh and replacement snap rings (used to secure the mesh in place) are also available.

Column ID Sample Basket Replacement Nylon Mesh Replacement Snap Ring
0.6 cm
Part #: 124261

Part #: 124193

Part #: 124080

0.9 cm
Part #: 124262

Part #: 124194

Part #: 124080

1.5 cm
Part #: 124264

Part #: 124200

Part #: 124080

2.5 cm
Part #: 124266

Part #: 124206

Part #: 124080

5.0 cm
Part #: 124268

Part #: 124212

Part #: 124080

7.5 cm
Part #: 124269

Part #: 124216

Part #: 124082

10 cm
Part #: 124270

Part #: 124218

Part #: 124082

15 cm
Part #: 124272

Part #: 124224

Part #: 124082

Fittings and Valves

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