Product Description
I. Overview
The PTFE vial is precision-machined from high-purity PTFE resin,
with both body and cap manufactured from PTFE to ensure a fully
fluorinated contact surface — eliminating metal ion contamination risks.
Compact in design, these vials are ideal for sample storage,
derivatization reactions, micro-analysis, and solution preparation.
Available with two sealing options: Screw caps
(reopenable for easy sampling) and Crimp caps
(single-use, ideal for long-term storage and transport).
PTFE-lined septa can be incorporated for enhanced sealing performance,
effectively preventing sample evaporation and contamination.
Available in sizes from 5ml to 100ml, widely used in pharmaceutical,
environmental testing, food analysis, petrochemical, and materials
science laboratories for sample preparation and analytical testing.
II. Core Performance Parameters
- Purity: High-purity PTFE with ultra-low metal leaching (Pb, U < 0.01ppb)
- Operating Temperature: -196℃ ~ 260℃, short-term up to 300℃
- Sealing Performance: Screw caps with PTFE liners withstand positive/negative pressure
- Chemical Resistance: Resistant to HF, aqua regia, concentrated H₂SO₄, HNO₃, strong alkalis, and organic solvents
- Surface Properties: Non-stick, minimal sample residue, easy to clean
III. Material & Workmanship
Manufactured from imported high-purity PTFE resin using precision
machining or molding techniques. Both inner and outer surfaces are
smooth with no burrs. The bottle mouth and cap are precision-matched
for reliable sealing. All products are assembled and packaged in
cleanroom environments.
Vials are available in translucent white (standard PTFE) and custom
color options to meet different laboratory identification and
traceability requirements.
Selection Guide
I. By Capacity
| Capacity | Recommended Use | Typical Applications |
|---|
| 5ml ~ 15ml | Micro-sample storage, derivatization | GC/LC vial alternative, precious sample storage |
| 20ml ~ 30ml | Routine sample storage, solution prep | Standards, buffers, reagent storage |
| 40ml ~ 60ml | Medium volume sample processing | Sample prep, extraction, digestion |
| 100ml | Large volume sample storage | Bulk sample collection, long-term storage |
II. By Sealing Type
- Screw Cap: Reopenable for sampling and reagent addition — suitable for frequent access applications
- Crimp Cap: Single-use, provides the highest level of leak and evaporation protection — ideal for long-term storage and transport
- Snap Cap: Quick open/close, easy operation — suitable for high-throughput labs
III. Septa Selection
- PTFE Septa: Chemically inert, compatible with all corrosive chemicals — recommended as standard
- Silicone Septa: Excellent sealing performance, suitable for organic solvents — lower chemical resistance than PTFE
- PTFE+Silicone Composite Septa: Best of both — sealing performance + chemical inertness, ideal for high-end applications
💡 Selection Tip:
For highly corrosive samples (HF, aqua regia, etc.),
choose full PTFE (body + cap + septa).
For organic solvents, PTFE+silicone composite septa
offer the best balance of sealing and inertness.
For ultra-trace analysis (ICP-MS level), choose
PFA material vials for the lowest metal leaching.
