Catalog Number - 95025-CT-20A

The 95025-CT-20A MICROSOLV Headspace Vials are precision‑manufactured 20 mL crimp top vials designed for high‑capacity headspace GC applications, offering CTC PAL® compatibility, pharmaceutical‑grade glass construction, and protection for light‑sensitive samples.

With a rounded bottom design and amber low‑actinic glass, these vials provide enhanced heat transfer, improved headspace equilibration, and reduced light exposure, making them ideal for sensitive, high‑throughput analytical workflows across multiple autosampler platforms.

CTC PAL® & Multi‑Platform Compatibility – Instrument Ready

• Manufactured to meet CTC PAL® headspace vial specifications

• Compatible with:

  • CTC PAL® autosamplers

  • Thermo® systems

  • Other 20 mm crimp‑top platforms

✅ Ideal for:

• multi‑instrument laboratories

• standardized analytical workflows

⚠️ Note:

• Not compatible with:

  • Thermo HS 250 or HS 500 autosamplers

Amber Glass – Light‑Sensitive Sample Protection

• Amberized, low‑actinic Type I borosilicate glass

• Reduces:

  • UV and visible light exposure

  • Risk of analyte degradation

✅ Ideal for:

• light‑sensitive compounds

• pharmaceutical, environmental, and food testing

20 mL Volume – Maximum Capacity

• Nominal volume: 20 mL

• Provides:

  • Largest standard headspace vial capacity

  • Flexible headspace ratio optimization

✅ Suitable for:

• trace‑level analysis

• low concentration analytes

• large sample volume methods

Rounded Bottom – Enhanced Heat Transfer

• Rounded geometry provides:

  • Uniform heat distribution

  • Improved headspace equilibration

✅ Enhances:

• analytical precision

• method reproducibility

Type I Borosilicate Glass – Pharmaceutical Grade

• First hydrolytic, Class A pharmaceutical grade glass (amberized)

• Provides:

  • Excellent chemical resistance

  • Low extractables

  • High thermal stability

✅ Suitable for:

• regulated laboratory environments

• sensitive headspace GC workflows

20 mm Crimp Top Finish – Secure Seal Integrity

• Standard 20 mm serum finish

• Designed for use with:

  • Aluminum or steel crimp caps and septa (sold separately)

✅ Ensures:

• Airtight sealing

• Reduced evaporation

• Reliable containment of volatile compounds

Dimensions – Autosampler Optimized

• Outer dimensions: 22.5 x 75.5 mm

• Designed for:

  • Consistent autosampler compatibility

  • Reliable positioning and movement

✅ Supports:

• automated headspace GC systems

Performance Positioning – Light Protection + Maximum Capacity

• Compared to clear vials:

  • ✅ Protects light‑sensitive samples

• Compared to flat‑bottom designs:

  • ✅ Improved heat transfer

• Compared to smaller vial formats:

  • ✅ Greater capacity

• Compared to single‑platform vials:

  • ✅ Broad autosampler compatibility

✅ Ideal for:

• CTC PAL® workflows

• multi‑instrument labs

• light‑sensitive, high‑volume GC applications

Typical Applications

• Headspace GC / GC‑MS analysis

• Pharmaceutical QA/QC and stability studies

• Environmental VOC testing

• Food and flavor analysis

• Light‑sensitive compound testing

Important Usage Notes

• Requires:

  • 20 mm crimp caps and septa (sold separately)

• Ensure:

  • Compatibility with autosampler (see exclusions above)

✅ Best suited for:

• automated, high‑capacity, light‑sensitive workflows