0item(s)

You have no items in your shopping cart.

2% online discount, easy
payment by credit card
Fast delivery, reduced
costs from 150 €
More than
100k products

At the beginning of the gas chromatography packed columns was the solely available column type. Today fused silica columns are dominating in the GC’s of the laboratories. In comparison to packed columns modern capillary columns are longer and have a smaller inner diameter and therefore higher separation efficiency. With regard to efficiency capillary columns are nowadays the column type of choice.

The analytics-shop.com offers the appropriate individual column for each application. Our inquiry form will help you with the configuration. For further questions please contact us via E-Mail or phone.

Special qualities of packed columns: flexibility, stability and sample capacity

Nevertheless, there are plenty applications where separation efficiency is not the critical point. In these cases packed columns are still appreciated and show interesting qualities. The most obvious characteristic you will recognize at once: fused silica columns are flexible and easy to handle in the lab they don’t reach the chemical stability of a packed stainless steel column. At harsh conditions that you find for example at production sites or in mobile systems the stability of packed columns often is helpful and necessary. Furthermore packed columns have a significant higher sample capacity. To some extend the lower separation efficiency can be compensated by the very large assortment of stationary phases. They give the opportunity to choose the right selectivity of the phase. Especially in the field of gas analysis packed columns are still essential.

Surfaces of packed GC Columns

If stainless steel surfaces are not applicable specially coated columns are available. These INNOSteel columns have a high-purity silica surface and therefore characteristics similar to glass but combined with the mechanical stability and flexibility of stainless steel.

Packed Columns for GC available on request

Altmann-Analytik offers a large assortment of packed columns. You can select from several  column materials (stainless steel, INNOSteel), different dimensions (e. g. inner diameter from 1 to 5.3 mm) and a variety of packing materials. Beside separation phases based on polymers (see table 2) a lot of stationary phases can prepared regarding customer requirements. On customer’s option the packed column can be pre-conditioned in carrier gas stream so that it is prepared for direct use in the system.

Altmann Analytik offers the appropriate individual column for each application. Our inquiry form will help you with the configuration. For further questions please contact us via E-Mail or phone.

Product was successfully added to your shopping cart.

Packed GC Columns

There are no products matching the selection.

Feature Packed Column Capillary Column
separation efficiency - +
sample capacity + -
available phase selectivity + -
column bleeding - +
max. temperature - +

Table 1: Comparison of some features of packed and capillary columns

 

Type Name USP-Code
Styrene-divinylbenzene copolymer having a nominal
surface area of less than 50 m² per g and an average pore
diameter of 0.3 to 0.4 μm. 
Chromosorb 101 S2
Copolymer of ethylvinylbenzene and divinylbenzene
having a nominal surface area of 500 to 600 m² per g and
an average pore diameter of 0.0075 μm.
HayeSep Q
Porapak Q
S3
Styrene-divinylbenzene copolymer with aromatic –O and –
N groups, having a nominal surface area of 400 to 600 m²
per g and an average pore diameter of 0.0076 μm.
HayeSep P
Porapak R
S4
Styrene-divinylbenzene copolymer having a nominal
surface area of 250 to 350 m² per g and an average pore
diameter of 0.0091 μm.
HayeSep P
Porapak P
Chromosorb 102 
S6
Copolymer of 4-vinyl-pyridine and styrene-divinylbenzene. HayeSep S
Porapak S
S8
A porous polymer based on 2,6-diphenyl-p-phenylene oxide. Tenax TA S9

Table 2: Some polymer based packing materials for packed columns