White 8-425 Open Top Screw Closures:
Precision Sealing Solutions for 2mL Autosampler Vials in HPLC & GC Applications
The White 8-425 Open Top Screw Closures are meticulously engineered for compatibility with standard 2mL 8-425 threaded autosampler vials. Featuring a built-in PTFE/Silicone septa, these closures deliver superior chemical resistance, leak prevention, and resealability, making them an ideal choice for high-precision analytical workflows.
Constructed from high-quality, chemically inert materials, they provide excellent sealing performance to prevent sample contamination, evaporation, and loss of volatile compounds. Designed to meet the rigorous demands of HPLC (High-Performance Liquid Chromatography) and GC (Gas Chromatography), these closures help maintain the integrity of sensitive samples during storage and automated analysis.
Key Features and Benefits
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High-Quality Material Composition
Manufactured from durable materials with PTFE-lined silicone septa, providing exceptional resistance to solvents, acids, and organic compounds. -
Autosampler-Compatible Design
The open-top format allows autosampler needles to pierce the septa directly—no need to manually remove the cap—supporting automated, high-throughput testing. -
Excellent Sealing & Contamination Control
Ensures airtight sealing to prevent sample degradation, cross-contamination, or loss of analytes during storage and transport. -
Versatile Use Across Analytical Platforms
Widely compatible with leading autosampler systems used in clinical, environmental, pharmaceutical, and chemical labs. -
Easy to Use and Highly Adaptable
Simple screw-thread design makes closure application and removal quick and efficient, reducing manual error and improving workflow productivity.
Applications
These white 8-425 open top screw closures are ideal for:
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HPLC and GC autosampler analysis
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Pharmaceutical and clinical research
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Environmental and food safety testing
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Chemical and quality control laboratories
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Any setting where precise sample containment and retrieval are required
White 8-425 Open Top Screw Closures are a smart, lab-proven solution for secure sample handling in automated analytical systems—delivering precision, consistency, and performance with every test.
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