Blue Open-Top Polypropylene Cap & Septa for 2mL Vials

Blue Open-Top Polypropylene Cap with Plastic Septa – 9mm Chromatography Vial Replacement

Keep your analytical workflow running smoothly with these Blue Open-Top Polypropylene Caps with Plastic Septa, designed as precise-fit replacements for standard 9mm, 2mL chromatography vials. Whether you're working in a research lab, quality control environment, or analytical testing facility, these caps deliver consistent, reliable sealing performance sample after sample.

Key Features

• Material: Durable polypropylene construction for chemical compatibility and long-lasting use
• Open-Top Design: Allows easy needle access while maintaining a secure fit on the vial
• Plastic Septa: Provides a reliable seal to protect sample integrity during storage and analysis
• 9mm Thread Size: Compatible with standard 2mL chromatography vials
• Color: Blue — easy to identify and organize in multi-sample workflows
• Available in 3 color options to suit your lab's coding and organizational needs
• Replacement-ready: Ideal for high-throughput labs requiring frequent cap changes

Why Choose These Chromatography Caps?

Designed for precision and consistency, these polypropylene caps are a dependable replacement option for busy laboratory settings. The open-top format gives technicians fast, unobstructed access to the septa, streamlining autosampler and manual injection workflows. The snug 9mm thread ensures minimal sample evaporation and contamination risk between injections.

Specifications

• Cap Type: Open-top
• Material: Polypropylene (cap) / Plastic (septa)
• Thread Size: 9mm
• Compatible Vial Size: 2mL chromatography vials
• Color: Blue
• Brand: Qme

Applications

• HPLC (High-Performance Liquid Chromatography)
• GC (Gas Chromatography) sample preparation
• Analytical laboratory workflows
• Quality control and testing environments
• Sample storage and organization

For more information on laboratory best practices and analytical chemistry standards, visit the NIST Chemistry Resources.

Frequently Asked Questions

Q: What size vials are these polypropylene chromatography caps compatible with?

A: These blue open-top polypropylene caps with plastic septa are designed to fit standard 9mm threaded 2mL chromatography vials, making them suitable for most HPLC and GC autosampler systems.

Q: What is the septa material, and why does it matter?

A: The septa is made from plastic, providing a reliable barrier that helps maintain sample integrity by minimizing evaporation and preventing contamination between injections or during storage.

Q: Can I use these caps for both manual injection and autosampler workflows?

A: Yes. The open-top design allows easy needle penetration, making these caps suitable for both manual injection techniques and automated autosampler setups commonly used in analytical labs.

Q: Are these caps available in other colors?

A: Yes, these Qme chromatography vial caps are available in 3 color options, which is helpful for color-coding samples and streamlining multi-batch laboratory organization.