Let’s Dive into Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144
The Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144 might not sound like the most thrilling piece of gear, but in the world of scientific sampling and storage, these little discs are absolute lifesavers. Kimble/Kontes is a respected name in laboratory equipment, and these septa are designed to provide a reliable, leak-proof seal for vials, especially when dealing with volatile compounds or sensitive samples. The combination of PTFE (Teflon) and silicone rubber offers chemical resistance and resealability, making them ideal for repeated injections or extractions.
My work often involves analyzing soil samples for volatile organic compounds (VOCs), and maintaining sample integrity from the field to the lab is paramount. I had been struggling with inconsistent results and frequent contamination issues traced back to inferior septa, leading to wasted time and resources. These issues prompted me to search for a higher quality solution, and the Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144 seemed to be the answer.
Upon receiving the case, I was immediately impressed by the packaging and consistent quality of the septa. The Kimble/Kontes septa felt denser and more resilient than the generic brands I had previously used. The finish was clean and free of debris, signaling a higher level of quality control.
I had been using generic 24-400 septa from a local supplier, as well as some supposedly high-end options from a lesser-known European manufacturer. The generic ones were prone to coring (where the needle punches out a small piece of the septum), and the European ones were ridiculously overpriced without delivering significantly better performance. This motivated my switch to Kimble/Kontes.
My first impression was one of relief. Finally, a product that looks and feels like it can actually perform the task it’s designed for. This isn’t just a laboratory supply; it’s a component that protects the integrity of my data.
Real-World Testing: Putting Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144 to the Test
First Use Experience
I primarily tested the Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144 in my lab during VOC analysis of soil and water samples collected from various environmental sites. This involved using the septa with 40mL VOA vials and an automated headspace sampler for gas chromatography-mass spectrometry (GC-MS) analysis. The conditions varied from hot and humid summer days in the field, to the controlled temperature of the lab.
The septa performed admirably in all conditions. Even after multiple needle punctures during sample analysis, they maintained a tight seal, preventing any leakage or contamination. This was especially critical when dealing with highly volatile compounds like benzene and toluene.
These septa were incredibly easy to use. Simply placing them in the screw cap of the vial ensured a tight fit and a reliable seal. There was no need for any special tools or techniques.
After the first use, I noticed significantly less coring compared to the generic septa. There were no issues with leakage or compromised samples, and the results were more consistent and reliable. This made me more confident in my data.
Extended Use & Reliability
After several months of use, the Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144 continue to impress. They show minimal signs of wear and tear, even after repeated punctures and exposure to various solvents. The PTFE layer remains intact, and the silicone rubber retains its elasticity.
The durability is remarkable. I have yet to encounter a single septum that failed or degraded prematurely. This speaks volumes about the quality of the materials and the manufacturing process.
Maintenance is virtually non-existent. The septa are single-use, so there’s no need for cleaning or special care. However, I do ensure that the vial threads are clean before sealing, to maintain optimal contact and prevent any potential leakage.
Compared to my previous experiences, the Kimble/Kontes septa outperform other brands in terms of durability, seal integrity, and resistance to coring. They have significantly reduced my analytical errors and improved the overall efficiency of my lab work. These septa not only meet but exceed my expectations.
Breaking Down the Features of Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144
Specifications
The Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144 boast several crucial specifications:
- Fits GPI Thread Size: 24-400 This is a standard thread size for many laboratory vials, ensuring compatibility with a wide range of containers.
- PTFE/Silicone Thickness: 0.005/0.120 inches This precise thickness ensures a balance between puncture resistance and resealability. The thin PTFE layer provides chemical inertness, while the thicker silicone layer allows for multiple injections.
- Kimble No.: 73818A-24 This is the unique identifier for this specific product, ensuring that you are ordering the correct size and material.
- Unit: Case of 144 This bulk packaging is convenient and cost-effective for laboratories with high sample throughput.
These specifications are critical because they directly impact the performance and reliability of the septa. The 24-400 thread size ensures compatibility with standard VOA vials. The PTFE/silicone thickness provides the optimal balance between chemical resistance and resealability. The case of 144 offers convenience and cost-effectiveness for large-scale analyses.
Performance & Functionality
The Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144 excel at their primary job: maintaining a tight, leak-proof seal for laboratory vials. This is essential for preventing contamination and preserving the integrity of samples, especially volatile compounds. They demonstrate exceptional accuracy and reliability.
The main strength is their superior seal integrity, even after multiple needle punctures. The weakness is that they are designed for single use only. They are not intended for long-term storage, which could potentially lead to degradation of the silicone.
The Kimble/Kontes septa exceed my expectations. They provide a level of reliability and consistency that I haven’t found with other brands. They have improved the accuracy and efficiency of my analytical work.
Design & Ergonomics
The design is simple yet effective. The flat disc shape fits snugly into the vial cap, and the PTFE/silicone construction provides the necessary chemical resistance and resealability. They are lightweight and easy to handle.
The septa are extremely user-friendly. There is virtually no learning curve involved.
Durability & Maintenance
With proper handling, these septa are expected to last for the duration of a typical analytical run (hours to days). The materials are robust and resistant to degradation from common laboratory solvents.
Maintenance is minimal, as the septa are designed for single use. However, proper storage in a clean, dry environment will help to prolong their shelf life.
Accessories and Customization Options
No accessories are included, as the septa are designed to be used with standard 24-400 vial caps. There are no customization options available, as the dimensions and materials are precisely engineered for optimal performance. These septa are compatible with most standard laboratory vials and caps.
Pros and Cons of Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144
Pros
- Superior Seal Integrity: Maintains a tight, leak-proof seal, even after multiple needle punctures, ensuring sample integrity.
- Reduced Coring: Significantly less coring compared to generic brands, minimizing contamination and analytical errors.
- Chemical Resistance: The PTFE layer provides excellent resistance to a wide range of solvents and chemicals.
- Consistent Performance: Provides reliable and consistent results, improving the accuracy and efficiency of analytical work.
- Convenient Packaging: The case of 144 is cost-effective and convenient for laboratories with high sample throughput.
Cons
- Single-Use Only: Designed for single use, which may not be ideal for applications requiring long-term resealability.
- Price: A bit more expensive than generic septa, but the superior performance and reliability justify the cost.
Who Should Buy Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144?
The Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144 are perfect for analytical chemists, environmental scientists, and laboratory technicians who require a reliable, leak-proof seal for their vials. They are essential for anyone working with volatile compounds, sensitive samples, or automated analytical instruments. Laboratories performing GC-MS, HPLC, and other instrumental analyses will benefit greatly from these septa.
Anyone looking for a cost-effective solution for long-term storage might want to explore alternative sealing methods. These septa are specifically designed for short-term analytical applications.
Ensure that you have compatible 24-400 vials and caps. Using high-quality vials and caps will help to ensure a proper seal and prevent any potential leakage.
Conclusion on Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144
Overall, the Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144 are an excellent investment for any laboratory that values accuracy, reliability, and sample integrity. The superior seal integrity, reduced coring, and chemical resistance make them a worthwhile upgrade over generic septa. The price is justified by the improved performance and reduced risk of analytical errors.
I would highly recommend these septa to any colleague or fellow scientist. The Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144 are more than just a laboratory supply; they are an essential component of accurate and reliable scientific analysis. Invest in the Kimble/Kontes Septa, PTFE/Silicone Rubber, Kimble 73818A 24, Case of 144 today and experience the difference!