Let’s Dive into Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125
The Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125 represent a cornerstone in laboratory essentials, offering a blend of reliability and affordability. These tubes, manufactured by Kimble/Kontes, are crafted from borosilicate glass and designed for various laboratory applications requiring centrifugation. The conical bottom aids in pellet formation, and the generous case of 125 ensures a steady supply for ongoing experiments.
My journey to these tubes began during a project involving soil sample analysis for heavy metal contamination near old shooting ranges. We needed a reliable method for separating the soil components after chemical extraction, and precise centrifugation was critical. I considered several options but landed on these due to Kimble/Kontes’s reputation for quality and the appropriate 15mL volume for our sample sizes.
Upon unboxing, I was immediately impressed with the uniform clarity of the glass and the sturdiness of each tube. They felt substantial in hand, a testament to their borosilicate construction. Compared to cheaper plastic alternatives I’ve used in the past, these felt significantly more robust.
Initially, I was relieved. Their uniform dimensions and clarity promised consistent results. The glass construction gives confidence in its chemical inertness and resistance to various solvents.
Real-World Testing: Putting Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125 to the Test
First Use Experience
I tested the Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125 extensively in our environmental testing lab. We used them for soil extraction protocols, separating humic acids from soil matrices, and for isolating particulate matter from water samples. The tubes handled the demands of repeated centrifugation cycles with ease.
The tubes proved to be resistant to a range of chemicals we employed, including nitric acid, acetone, and methanol. Their conical shape facilitated efficient pellet formation, even with fine clay particles. Using these tubes was straightforward; load, balance in the centrifuge, and spin.
No issues arose during the initial uses. The tubes consistently withstood the specified RCF (Relative Centrifugal Force) without cracking or leaking. I appreciated the peace of mind knowing that my samples were secure during high-speed spins.
Extended Use & Reliability
After several months of intensive use, the Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125 continued to perform admirably. We experienced minimal breakage, even with frequent handling and washing. The glass remained clear and unaffected by the solvents we routinely used.
The tubes showed no signs of degradation or etching from chemical exposure. Occasional cleaning with laboratory detergents was all that was needed to maintain their clarity. Compared to previous experiences with lower-quality tubes that cracked or leached contaminants, these Kimble/Kontes tubes were a noticeable improvement.
Breaking Down the Features of Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125
Specifications
The Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125 feature a 15mL volume, ideal for moderate sample sizes. They have a diameter of 17mm and a length of 126mm, fitting standard centrifuge rotors. The tube’s design accepts 15-415 size caps, though these are sold separately.
These dimensions are crucial for compatibility with various centrifuge models and for maintaining proper sample volumes. The 2980 g Maximum RCF ensures these tubes can withstand standard centrifugation speeds without risk of failure. The fact that these tubes meet Type I, A, or B glass requirements per ASTM E438 highlights Kimble/Kontes’s commitment to quality.
Performance & Functionality
The Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125 perform exceptionally well in separating sample components. The conical bottom encourages efficient pellet formation and easy removal of supernatant. They are inert to most common laboratory chemicals, ensuring sample integrity.
The tubes function perfectly for their intended purpose. The only area for possible improvement is the packaging, perhaps incorporating a more secure method of storage after the initial shrink-wrap is removed. These tubes meet and often exceed expectations for disposable centrifuge tubes.
Design & Ergonomics
The Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125 have a simple, functional design made of clear borosilicate glass for easy viewing of contents. Their conical shape is optimized for pellet formation during centrifugation. The tubes are lightweight and easy to handle, even with gloves.
The design is inherently user-friendly, with no learning curve involved. The glass construction gives a sense of reliability and chemical compatibility.
Durability & Maintenance
The borosilicate glass construction ensures excellent durability under normal laboratory conditions. They withstand standard centrifugation speeds and chemical exposures. These tubes are designed for single-use disposal, minimizing maintenance requirements.
While reusable with proper cleaning and sterilization, their disposability eliminates the need for rigorous cleaning protocols. They are built to last through the experiment and analysis process.
Accessories and Customization Options
The Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125 do not come with caps; these must be ordered separately. Users can select caps made from various materials (e.g., phenolic, polypropylene) to suit their specific chemical compatibility needs. Custom labeling options are also available for sample identification.
These tubes are designed to be compatible with a wide range of standard laboratory caps and labeling systems. The availability of different cap options enhances their versatility.
Pros and Cons of Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125
Pros
- Reliable borosilicate glass construction ensures sample integrity. This eliminates potential leaching or contamination.
- Consistent dimensions and conical bottom provide predictable performance in centrifugation. The conical shape helps in precise pellet formation.
- Broad chemical compatibility allows use with a variety of solvents and reagents.
- Ample case of 125 provides a convenient and cost-effective supply for ongoing experiments.
- Maximum RCF of 2980 g is adequate for most standard laboratory protocols.
Cons
- Caps are not included and must be purchased separately. This adds to the overall cost.
- The packaging could be improved for long-term storage after the initial shrink-wrap is removed.
- Glass tubes are susceptible to breakage if dropped or mishandled, unlike plastic alternatives.
Who Should Buy Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125?
The Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125 are perfect for laboratory researchers, environmental scientists, and quality control analysts who need reliable and chemically inert centrifuge tubes. They are well-suited for applications involving sample separation, pellet formation, and solvent extraction. Anyone needing a reliable supply of glass centrifuge tubes will benefit.
Anyone primarily working with biological samples, who may prefer sterile, pre-capped plastic tubes, may want to skip this product. Similarly, educational facilities using low-speed, basic centrifuges might find cheaper alternatives sufficient. You will need to purchase compatible caps to use these tubes effectively.
Conclusion on Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125
The Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125 offer a compelling combination of quality, reliability, and value. The borosilicate glass construction ensures sample integrity and chemical compatibility, while the consistent dimensions and conical bottom provide predictable performance. While the need to purchase caps separately adds to the overall cost, the generous case of 125 offers a cost-effective solution for laboratories with ongoing needs.
At $189.99, the price is justified by the quality and consistency of the tubes, making them a worthwhile investment for serious researchers and analysts. I would personally recommend these tubes to anyone seeking reliable and chemically inert centrifuge tubes for their laboratory applications. Invest in the Kimble/Kontes Disposable Plain Centrifuge Tubes, Kimble 73785 15 Tubes, Case of 125 and experience the peace of mind that comes with using quality laboratory consumables.