Frequently Asked Questions

Gas Chromatography Accessories

Can base-deactivated liners be re-deactivated?

Yes. There are three options for dealing with an inlet liner that has lost its deactivation properties. First, you can send it back to Restek for polymeric or Siltek™ re-deactivation. Pricing is available on request, and depends on the number of liners returned — the more liners you return, the lower the re-deactivation cost per liner. Second, you can re-deactivate the liner yourself, using dimethyldichlorosilane (DMDCS), available from Restek in convenient 20mL ampuls (cat. # 31840). Third, often a liner simply needs to be cleaned, not re-deactivated. Remove the contaminants with a cotton swab, rinse the liner in solvent (e.g., methanol, acetone, or hexane), then dry it in an oven. This can be a relatively inexpensive way to extend performance.