Short Answer: Yes.
The MICROSOLV Mobile Phase Delivery Bottle Cap, Catalog Number 58820-06, contains three threaded ports within the PTFE insert that allow tubing to be securely connected using standard low-pressure fittings and connectors.
These ports are designed for integration with typical HPLC mobile phase delivery systems and solvent reservoirs.
Port Configuration
The PTFE insert contains three threaded holes.
All ports utilize:
- 1/4-28 threads
- Standard low-pressure connector compatibility
- Secure tubing connections for solvent delivery applications
This design provides flexibility when configuring solvent bottles for HPLC systems.
Tubing Sizes Supported
Two Large Ports
Two of the threaded ports have:
- 3.4 mm inner diameter
- Suitable for 1/8-inch tubing
These larger openings may be utilized for solvent delivery, venting, or other fluid handling configurations depending on system requirements.
One Small Port
One threaded port has:
- 1.8 mm inner diameter
- Suitable for tubing up to 1/16 inch OD
This port is designed for use with standard capillary tubing and low-pressure connectors commonly used in HPLC systems.
Benefits of Using Mobile Phase Delivery Caps
Keeping a delivery cap installed on the solvent bottle provides several advantages:
- Helps reduce dust contamination
- Minimizes particulate ingress
- Reduces solvent exposure to the laboratory environment
- Minimizes absorption of atmospheric carbon dioxide
- Helps reduce solvent evaporation and outgassing
These benefits can contribute to improved mobile phase integrity and more consistent chromatographic performance.
Important Operating Considerations
Mobile Phase Delivery Bottle Caps are designed to support solvent delivery and tubing management, but they are not intended as airtight sealing devices.
These caps:
- Do not create a vacuum-tight seal
- Do not support bottle pressurization
- Do not provide sterile containment
- Should not be used in applications requiring sterility
Users should avoid intentionally pressurizing solvent bottles unless specifically designed equipment and safety procedures are being used.
Typical Applications
MICROSOLV Mobile Phase Delivery Bottle Caps are commonly used for:
- HPLC solvent reservoirs
- UHPLC solvent delivery systems
- Mobile phase storage
- Solvent degassing systems
- Laboratory chromatography workflows
The threaded port design provides a convenient method for routing tubing while helping maintain a cleaner solvent environment.
Key Takeaways
- Mobile Phase Delivery Bottle Caps contain three threaded tubing ports.
- All ports utilize standard 1/4-28 threads.
- Two ports accommodate 1/8-inch tubing.
- One port accommodates tubing up to 1/16 inch OD.
- The caps help minimize contamination, evaporation, and atmospheric exposure.
- These caps are not intended for sterile, vacuum, or pressurized applications.