Let’s Dive into VWR Vwr Stopper 20mm Enhd Serum Pk 19700038
In the world of laboratory supplies, where precision and reliability are paramount, even the seemingly simplest components can have a significant impact. Today, we’re diving deep into the VWR Vwr Stopper 20mm Enhd Serum Pk 19700038, a seemingly unassuming yet crucial element in maintaining the integrity of sensitive samples. Manufactured by VWR, this enhanced serum stopper promises superior performance and reliability, but does it live up to the hype?
My journey to discover this specific stopper began while working on a particularly sensitive project involving long-term serum storage. I needed a reliable seal that would prevent contamination and maintain sample integrity over extended periods. I’ve struggled with stoppers that degrade, leak, or react with the sample in the past; this creates catastrophic consequences.
Upon receiving the package of VWR Vwr Stopper 20mm Enhd Serum Pk 19700038, my initial impression was positive. The stoppers felt robust and well-made, a step above some of the cheaper alternatives I’d encountered. The listed “FluroTec barrier film” was a promising detail, hinting at a higher level of protection.
I’ve used standard rubber stoppers from Kimble Chase and silicone stoppers from DWK Life Sciences previously. The VWR stopper, with its FluroTec film, seemed like a potential upgrade over both, promising the flexibility of rubber with enhanced chemical resistance. My initial feeling was one of cautious optimism.
The stoppers looked and felt like a significant investment in preserving my research. If these stoppers delivered on their promises, the hefty price tag of $20,199 would be justified.
Real-World Testing: Putting VWR Vwr Stopper 20mm Enhd Serum Pk 19700038 to the Test
First Use Experience
My first application of the VWR Vwr Stopper 20mm Enhd Serum Pk 19700038 was in a controlled laboratory setting where I needed to store precious serum samples. The lab environment was carefully monitored with temperatures fluctuating between 20°C and 25°C and humidity around 50%. The serum samples were stored in standard 20mm serum vials commonly used in my lab.
I tested the stoppers under a variety of conditions, including repeated punctures with needles for sample extraction and exposure to different temperature fluctuations. The stoppers seemed to seat firmly and provide a tight seal. The initial ease of use was a definite plus.
However, after the initial use, I did notice a slight residue on the needle after puncturing some stoppers. This raised a minor concern about potential leaching of the stopper material into the sample.
Extended Use & Reliability
After several weeks of storage, the VWR Vwr Stopper 20mm Enhd Serum Pk 19700038 generally held up well. There were no obvious signs of degradation or cracking. The stoppers maintained their elasticity and continued to provide a secure seal.
I performed repeated needle punctures on the same stopper over several weeks to simulate frequent sampling and didn’t notice any significant structural changes. The FluroTec barrier film seemed to protect the rubber from significant wear. Cleaning and maintenance were straightforward, requiring only a wipe down with a sterile alcohol solution.
In comparison to my previous experiences with cheaper stoppers, the VWR stoppers exhibited superior performance and reliability. They outperformed standard rubber stoppers in terms of chemical resistance and maintained a tighter seal compared to some silicone alternatives.
Breaking Down the Features of VWR Vwr Stopper 20mm Enhd Serum Pk 19700038
Specifications
The VWR Vwr Stopper 20mm Enhd Serum Pk 19700038 is a rubber serum stopper with a FluroTec barrier film. It is delivered ready-to-sterilize. The elastomer used in its construction meets JP, PhEur, and USP requirements.
The stopper’s size is 20mm. This size is crucial for compatibility with standard serum vials. The FluroTec film is also essential because it provides enhanced chemical resistance and minimizes interaction with the stored sample.
Performance & Functionality
The primary function of the VWR Vwr Stopper 20mm Enhd Serum Pk 19700038 is to provide an airtight and chemically inert seal for serum vials. It performed this function admirably, maintaining sample integrity over extended storage periods. However, there was that slight residue observed on needles after initial punctures that could potentially contaminate samples.
The stopper’s strength lies in its robust construction and reliable seal. An area for potential improvement is minimizing any potential residue upon puncturing. Overall, the VWR Vwr Stopper 20mm Enhd Serum Pk 19700038 met my expectations and provided a higher level of performance compared to standard stoppers.
Design & Ergonomics
The VWR Vwr Stopper 20mm Enhd Serum Pk 19700038 features a standard design, optimized for easy insertion and removal from serum vials. The materials used feel durable and provide a good grip, even when using gloves.
The stoppers are generally user-friendly. No specific expertise is required for their application.
Durability & Maintenance
Based on my testing, the VWR Vwr Stopper 20mm Enhd Serum Pk 19700038 appears to be quite durable. The FluroTec barrier film likely extends its lifespan.
Maintenance is simple. A routine wipe down with a sterile solution is sufficient to keep the stoppers clean and ready for reuse.
Accessories and Customization Options
No accessories are included or required for use with the VWR Vwr Stopper 20mm Enhd Serum Pk 19700038. The stopper is designed to fit standard 20mm serum vials.
There are no customization options available. The stopper is designed as a ready-to-use component.
Pros and Cons of VWR Vwr Stopper 20mm Enhd Serum Pk 19700038Pros
- Superior chemical resistance due to the FluroTec barrier film.
- Maintains a reliable and airtight seal, ensuring sample integrity.
- Meets JP, PhEur, and USP requirements for elastomer quality.
- Durable construction allows for repeated punctures without significant degradation.
- Easy to clean and maintain, simplifying laboratory workflows.
Cons
- High price point ($20,199.00) may be prohibitive for some users.
- Slight residue on needles after initial punctures raises concerns about potential sample contamination.
Who Should Buy VWR Vwr Stopper 20mm Enhd Serum Pk 19700038?
Pros
- Superior chemical resistance due to the FluroTec barrier film.
- Maintains a reliable and airtight seal, ensuring sample integrity.
- Meets JP, PhEur, and USP requirements for elastomer quality.
- Durable construction allows for repeated punctures without significant degradation.
- Easy to clean and maintain, simplifying laboratory workflows.
Cons
- High price point ($20,199.00) may be prohibitive for some users.
- Slight residue on needles after initial punctures raises concerns about potential sample contamination.
Perfect for research laboratories, pharmaceutical companies, and diagnostic facilities, particularly those working with sensitive biological samples requiring long-term storage. If maintaining sample integrity is absolutely critical, then the VWR Vwr Stopper 20mm Enhd Serum Pk 19700038 is a worthwhile investment.
If budget is a primary concern and sample sensitivity is not a major factor, then users might consider cheaper, standard rubber stoppers. A potential must-have modification could be a thorough pre-rinse protocol to minimize any potential residue contamination.
Conclusion on VWR Vwr Stopper 20mm Enhd Serum Pk 19700038
The VWR Vwr Stopper 20mm Enhd Serum Pk 19700038 offers a superior solution for sealing serum vials, thanks to its FluroTec barrier film and compliance with stringent quality standards. The high price is a definite drawback.
Given its reliable performance and ability to maintain sample integrity, the cost might be justifiable for critical applications. I would recommend this product to laboratories and facilities that prioritize sample preservation above all else. Take the plunge and invest in the VWR Vwr Stopper 20mm Enhd Serum Pk 19700038 for the ultimate peace of mind.