Catalog Number - 95025-26-4R

The 95025-26-4R BASIK Headspace Caps are a made‑to‑order solution engineered for SPME (Solid Phase Micro‑Extraction) workflows, combining a dual‑profile silicone/PTFE septa with magnetic bimetallic cap construction for optimized performance in automated headspace systems.

These caps are fitted in 20 mm red bimetallic magnetic closures with an 8 mm center hole, providing enhanced sealing, controlled penetration for SPME fibers, and easier crimping compared to all‑steel caps.

✅ Recommended for validated SPME workflows requiring magnetic, easy‑crimp caps with color differentiation

SPME‑Style Septa – Designed for Fiber Protection

• Dual‑thickness septa geometry:

  • 3.0 mm outer sealing ring

  • 1.5 mm thin center target zone

• Provides:

  • Easier SPME fiber penetration

  • Reduced risk of fiber breakage

  • Improved injection consistency

✅ Ideal for SPME autosampler workflows and delicate fiber sampling

High Purity Silicone/PTFE Septa – Clean Performance

• White silicone rubber / blue PTFE

• Provides:

  • Chemical inertness

  • Reduced extractables

  • Stable chromatographic baseline

✅ Suitable for routine to sensitive headspace GC applications

Bimetallic Magnetic Caps – Automation + Ease of Crimping

• Bimetallic construction:

  • Magnetic center for autosampler compatibility

  • Aluminum outer ring for easier crimping

• Red color enables:

  • Visual identification

  • Workflow segmentation

✅ Ideal for:

• CTC PAL® autosamplers

• Other SPME‑capable robotic systems

8 mm Center Hole – Optimized Access & Seal

• Provides:

  • Reliable fiber/needle access

  • Adequate sealing surface area

• Works in combination with SPME septa design

✅ Ensures consistent injections and strong sealing performance

Wide Temperature Range – Headspace Ready

• Operating range:

  • -60°C to 200°C

✅ Suitable for:

• Heated headspace GC

• VOC and semi‑volatile analysis

• SPME workflows under thermal conditions

Crimp Top Design – Secure Seal Integrity

• 20 mm bimetallic magnetic crimp cap

• Provides:

  • Airtight sealing

  • Reduced evaporation

  • Reliable volatile sample containment

✅ Critical for accurate SPME and headspace GC results

Designed for 20 mm Headspace Vials

• Compatible with:

  • 20 mm crimp‑top headspace vials

✅ Ensures:

• Proper fit

• Reproducible analytical performance

Performance Positioning – SPME + Ease‑of‑Use + Visual Control

• Compared to standard septa:

  • ✅ Reduced fiber damage

  • ✅ Easier penetration

• Compared to steel magnetic caps:

  • ✅ Easier crimping

• Compared to blue version (95025-26-4B):

  • ✅ Red color for process differentiation

✅ Ideal for:

• SPME workflows

• automated GC headspace systems

• labs requiring visual sample organization

Typical Applications

• SPME headspace GC analysis

• Environmental VOC testing

• Food and flavor analysis

• Pharmaceutical QA/QC

• High‑throughput automated workflows

Important Usage Notes

• Requires 20 mm crimping tool for proper sealing

• Magnetic caps:

  • Require compatible autosampler systems

• SPME septa:

  • Optimized for fiber injection

  • Not intended for heavy needle penetration cycles

✅ Best suited for:

• SPME‑specific analytical workflows

🚨Made‑to‑Order & Pricing Information

This is a custom, made‑to‑order item.

• Please contact Customer Service for formal quotation, lead time, and ordering assistance. Classification: