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Altmann GC Retention Gaps

A GC column may become contaminated over time by the accumulation of non-volatile material and may be damaged by the continuous condensation and evaporation of solvents and analytes. By using GC retention gaps, also known as precolumns, the lifetime of the GC columns can be extended cost-effectively. Retention gaps are mainly used for focusing the sample components when introducing large (liquid) sample quantities onto the column.

GC retention gaps consist of a length of uncoated, deactivated fused silica capillary tubing placed between the GC injection port and the GC column. The columns are connected by press-fit connectors. Altmann includes their own brand GC retention gaps for various applications, with different lengths and different inner diameters.



Item Name Product Image Price

Altmann GC Retention Gap CW 1 m x 0.05 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-005-1

GC Retention Gap CW 1 m x 0.05 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 1 m x 0.05 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-005-1 £13.99Buy Now

Altmann GC Retention Gap CW 1 m x 0.10 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-010-1

GC Retention Gap CW 1 m x 0.10 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 1 m x 0.10 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-010-1 £13.99Buy Now

Altmann GC Retention Gap CW 1 m x 0.15 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-015-1

GC Retention Gap CW 1 m x 0.15 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 1 m x 0.15 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-015-1 £13.99Buy Now

Altmann GC Retention Gap CW 1 m x 0.18 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-018-1

GC Retention Gap CW 1 m x 0.18 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 1 m x 0.18 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-018-1 £13.99Buy Now

Altmann GC Retention Gap CW 1 m x 0.20 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-020-1

GC Retention Gap CW 1 m x 0.20 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 1 m x 0.20 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-020-1 £13.99Buy Now

Altmann GC Retention Gap CW 1 m x 0.25 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-025-1

GC Retention Gap CW 1 m x 0.25 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 1 m x 0.25 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-025-1 £10.79Buy Now

Altmann GC Retention Gap CW 1 m x 0.32 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-032-1

GC Retention Gap CW 1 m x 0.32 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 1 m x 0.32 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-032-1 £10.79Buy Now

Altmann GC Retention Gap CW 1 m x 0.53 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-053-1

GC Retention Gap CW 1 m x 0.53 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 1 m x 0.53 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-053-1 £13.99Buy Now

Altmann GC Retention Gap CW 10 m x 0.05 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-005-10

GC Retention Gap CW 10 m x 0.05 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 10 m x 0.05 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-005-10 £139.82Buy Now

Altmann GC Retention Gap CW 10 m x 0.10 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-010-10

GC Retention Gap CW 10 m x 0.10 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 10 m x 0.10 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-010-10 £139.82Buy Now

Altmann GC Retention Gap CW 10 m x 0.15 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-015-10

GC Retention Gap CW 10 m x 0.15 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 10 m x 0.15 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-015-10 £139.82Buy Now

Altmann GC Retention Gap CW 10 m x 0.18 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-018-10

GC Retention Gap CW 10 m x 0.18 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 10 m x 0.18 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-018-10 £139.82Buy Now

Altmann GC Retention Gap CW 10 m x 0.20 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-020-10

GC Retention Gap CW 10 m x 0.20 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 10 m x 0.20 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-020-10 £139.82Buy Now

Altmann GC Retention Gap CW 10 m x 0.25 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-025-10

GC Retention Gap CW 10 m x 0.25 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 10 m x 0.25 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-025-10 £107.96Buy Now

Altmann GC Retention Gap CW 10 m x 0.32 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-032-10

GC Retention Gap CW 10 m x 0.32 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 10 m x 0.32 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-032-10 £107.96Buy Now

Altmann GC Retention Gap CW 10 m x 0.53 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-053-10

GC Retention Gap CW 10 m x 0.53 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 10 m x 0.53 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-053-10 £139.82Buy Now

Altmann GC Retention Gap CW 2 m x 0.05 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-005-2

GC Retention Gap CW 2 m x 0.05 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 2 m x 0.05 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-005-2 £27.96Buy Now

Altmann GC Retention Gap CW 2 m x 0.10 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-010-2

GC Retention Gap CW 2 m x 0.10 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 2 m x 0.10 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-010-2 £27.96Buy Now

Altmann GC Retention Gap CW 2 m x 0.15 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-015-2

GC Retention Gap CW 2 m x 0.15 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 2 m x 0.15 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-015-2 £27.96Buy Now

Altmann GC Retention Gap CW 2 m x 0.18 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-018-2

GC Retention Gap CW 2 m x 0.18 mm, CW Deactivated Fused Silica Retention Gap / Precolumn
Altmann GC Retention Gap CW 2 m x 0.18 mm, CW Deactivated Fused Silica Retention Gap / Precolumn - AARETG-WAX-018-2 £27.96Buy Now