Common Thermo LC Autosamplers and Vial Compatibility
Most Thermo LC autosamplers are designed around the standard 12 × 32 mm autosampler vial format, including systems such as:
- Thermo Scientific UltiMate 3000 LC System
- Thermo Scientific Vanquish UHPLC System
These autosamplers rely on consistent vial dimensions to ensure:
- Accurate needle entry
- Reliable injection volumes
- Smooth tray movement
- Reduced risk of missed injections
Recommended Vial Specifications
For most Thermo LC autosamplers, the following vial configuration is commonly used.
Vial Format
- 12 × 32 mm autosampler vial
Capacity
- 1.5 mL or 2.0 mL
- Limited-volume inserts or fused inserts can be used when working with small sample quantities
- This ensures the autosampler needle consistently reaches the sample while minimizing sample loss
Neck Finish
- 9 mm screw thread
- 11 mm snap top vials
- 11 mm crimp top vials
Material
- Type I borosilicate glass
- Polypropylene
Closure
- PTFE/silicone septa with slit
This configuration supports both routine LC workflows and high-throughput UHPLC applications.
Differences Between UltiMate and Vanquish Autosamplers
While vial size compatibility is largely consistent across Thermo LC systems, there are some practical considerations when selecting autosampler consumables.
UltiMate 3000 Systems
- Widely used across pharmaceutical, environmental, and academic laboratories
- Compatible with standard autosampler vial formats
- Typically tolerant of common vial configurations
Vanquish UHPLC Systems
- Designed for higher performance and faster cycle times
- Benefit from high-quality vials with tight dimensional tolerances
- Septa durability becomes more important during high injection counts
Practical Vial Selection Guidance
From laboratories using Thermo LC systems, several best practices consistently improve autosampler performance:
- Choose vials with consistent manufacturing tolerances
- Use high-quality septa to minimize coring
- Select inserts carefully when working with low sample volumes
- Avoid inconsistent vial heights that can affect needle positioning
These factors can significantly impact injection precision and chromatographic reproducibility.
Quick Compatibility Summary
Most Thermo LC autosamplers are compatible with:
- 12 × 32 mm autosampler vials
- 9 mm screw thread vials or 11 mm snap top vials
- 1.5 mL or 2.0 mL capacity
- Vials with inserts for low-volume applications
Using these standard vial configurations ensures proper autosampler function and reliable analytical performance.
Need Help Selecting the Right Vial?
Chrom Tech chromatography specialists help laboratories match:
- Thermo autosampler model
- Sample and injection volume
- Analytical method requirements
to the correct vial configuration for reliable autosampler performance across Thermo LC and UHPLC systems.