GC Vial Screw Cap for Supply
Features of GC Vial Screw Caps
When selecting GC vial screw caps, several key features should be considered:
1. Material Composition
GC vial screw caps are typically made from materials such as pol...
Contact US
Get Price
Share:
Content
Features of GC Vial Screw Caps
When selecting GC vial screw caps, several key features should be considered:1. Material Composition
GC vial screw caps are typically made from materials such as polypropylene (PP) or aluminum. Each material has its advantages:- Polypropylene (PP): Offers good chemical resistance and is suitable for a wide range of solvents. PP caps are durable and less prone to breakage.
- Aluminum: Provides excellent sealing properties and is often used for high-temperature applications.
2. Septa Material
The septum is a crucial component that allows needle penetration while maintaining a seal. Common septum materials for GC vial screw caps include:- PTFE/Silicone: Offers good chemical resistance and sealing properties.
- PTFE/Rubber: Provides excellent resealability and is suitable for multiple injections.
- Pre-slit Septa: Reduce coring and extend septum life.
3. Cap Design
The design of the cap is critical for ensuring a secure seal and ease of use. Common designs include:- Open Top Caps: Allow for easy needle penetration and are often used with septa.
- Closed Top Caps: Provide a more secure seal and are used when needle penetration is not required.
Inquiry
More Screw top GC vial
