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China Manufacturer of 11mm Snap Top Caps with Septa

Preassembled polypropylene snap-top closures with a 6mm center hole, including  PTFE/silicone septa. To use with 11mm snap-top vials. Snap caps provide a secure seal, minimizing evaporation even with volatile samples. Snap ring closures N11 should only be used in HPLC, as the punctual compacting pressure of the septum against the vial rim by the four pins in the cap does not achieve the same level of tightness as the evenly applied pressure through a screw thread or by crimping.

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Caps

Preassembled polypropylene snap-top closures with a 6mm center hole, including  PTFE/silicone septa. To use with 11mm snap-top vials. Snap caps provide a secure seal, minimizing evaporation even with volatile samples. Snap ring closures N11 should only be used in HPLC, as the punctual compacting pressure of the septum against the vial rim by the four pins in the cap does not achieve the same level of tightness as the evenly applied pressure through a screw thread or by crimping.

Septa

High-quality, pure silicone is laminated to PTFE to give a pure, highly inert septum with excellent resealing characteristics even after repeated punctures. PTFE/Silicone septa are the preferred product for use in most HPLC and GC applications. Septa-silica gel has strong repetitive sealability, and it can maintain good close performance after multiple injections; PTFE is a material with better chemical conditions at present, and it can withstand strong acids and alkalis.

Pre-slit or Not

Chromatography septic can be pre-slit or not and must be considered by evaluating a few factors. If coring or clogging from a narrow needle or needle deflection from highly durable septa material is a concern, then choosing a pre-slit septum is a better choice. A PTFE/Silicone with a slitted septum allows for easier needle penetration as well as to release the vacuum that forms when a large volume of sample is withdrawn from 11mm snap-top vials.  Typically, a non-slit septum exhibits resealing capabilities for a limited number of needle punctures but for long-term storage in the vial, using a new non-punctured septum is best practice.

Company Introduction

1. Founded in 2007, Zhejiang Aijiren, Inc. specialized in chromatography consumables, such as autosampler vial for HPLC, headspace vial, GC vials, micro inserts, septa and caps, syringe filter, etc, covers more than 10000 square meters, and has clean workshop more than 2000 square meters. 100, 000 class cleaning room;

2. 15 years of export experience, export to more than 70 countries, 2000+ customs around the world;

3. More than 10 years of experience in automatic analysis technique

4. Aijiren has its own R&D Center and Quality Control Center to keep products of high quality.

5. All materials are produced at 100,000-grade clean room.
6. Passed ISO9001:2015  quality management system certification, RoHS compliance can also be provided.

 

 

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