GC Retention Gap HMDS 20 m x 0.18 mm, HMDS Deactivated High Temperature Fused Silica Retention Gap / Precolumn

Our Retention Gaps have an unsurpassed chemical inertness. Use our Retention Gaps for focusing the analytes when a large (liquid) sample is introduced directly into the column and/or to protect the analytical column from contamination. Deactivated Retention Gaps are also useful as connecting pipes to various part of GC systems with different configurations.