Products

Home Product Chromatography Injection Vial Headspace Cap 20ml | GC/HPLC Septa | PTFE/Silicone | Pharma Analysis

Chromatography Injection Vial Headspace Cap 20ml | GC/HPLC Septa | PTFE/Silicone | Pharma Analysis

chromatography headspace septa 20ml

PTFE-lined vial caps chromatography

pre-slit GC vial closures

Chromatography injection vial headspace cap 20 ml

20ml chromatography headspace septa with PTFE-lined vial caps ensure secure sealing for GC analysis. Pre-slit closures offer easy access while maintaining integrity in chromatography workflows. Ideal for precision-sensitive GC applications requiring reliable sample protection.

Categories:Lab Supplies

END INQUIRY

Product Description

The Chromatography Injection Vial Headspace Cap 20 mL is designed for GC headspace analysis, featuring PTFE-lined vial caps chromatography to ensure chemical inertness and prevent sample contamination. Compatible with 20 mL headspace vials, these pre-slit GC vial closures enable easy needle penetration while maintaining an airtight seal. The caps integrate heat-resistant chromatography headspace septa (20mL), crafted from silicone with PTFE barriers to withstand temperatures from -40°C to 220°C and aggressive solvents. Ideal for pharmaceuticals, environmental testing, and food safety, they offer low bleed performance, minimizing interference with sensitive detectors. Their pre-slit design reduces septum coring but may require careful handling to avoid premature wear. The caps are compatible with standard autosamplers, ensuring seamless integration into automated workflows. Key advantages include enhanced sample integrity and extended reusability, though frequent high-temperature cycles may degrade the septa over time.

Parameter	Specification
Model	Chromatography injection vial headspace cap 20 ml
Septa Type	Pre-slit GC vial closures for headspace analysis
Septum Material	PTFE/silicone laminated with chemical-resistant layer
Liner Type	Integrated PTFE-faced silicone for chromatography
Cap Diameter	20 mm (standard 20ml vial size)
Temperature Range	-40°C to 300°C
Seal Integrity	≤1.0µg/mL helium leakage rate
Pre-slit Feature	Laser-cut slit (0.5mm nominal) for GC autosampler needles
Pressure Resistance	Up to 15 bar (217.5 psi)
Chemical Compatibility	Resistant to DMSO, acetone, methanol, and acids
Certification	USP Class VI, FDA 21 CFR 177.2600
Autosampler Compatibility	Agilent, Thermo, Shimadzu, PerkinElmer systems

question:Do you provide technical selection services?
answer:Yes, we offer technical selection guidance. Please contact our support team for customized assistance.
question:Can you provide shipment photos or order history of similar products?
answer:We can share product documentation and relevant proofs upon request. Contact us for details.
question:What is the warranty policy?
answer:Our warranty covers defects for 12 months from delivery, excluding misuse or unauthorized modifications. Terms apply.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.

Home About Products News Contact Us

Quick quote

Even if not present on our website, we probably have the spare parts you are looking for. Specify the quantities and we will send you our quote!

Product detail

+ Add another part number