Let’s Dive into Whatman Extraction Thimbles, Whatman 2810-258 Double Thickness, Pack of 25
The Whatman Extraction Thimbles, Whatman 2810-258 Double Thickness, Pack of 25 represent a crucial element in laboratory extraction processes, particularly for those of us who need to isolate specific compounds with maximum purity and efficiency. These thimbles, manufactured by Whatman, are crafted from high-grade cotton cellulose and boast a double-thickness design. This enhanced thickness ensures superior retention of even the finest precipitates.
My journey to discovering these thimbles started when I was tasked with optimizing our in-house solvent extraction process for analyzing soil samples for persistent organic pollutants. Our previous method, while acceptable, suffered from occasional breakthrough of fine particulate matter, impacting the accuracy of downstream analysis. I sought a solution that would eliminate this issue, offering reliable and consistent results without compromising throughput.
Upon unboxing, I was immediately struck by the uniform construction and the substantial feel of the Whatman Extraction Thimbles. The seamless design and smooth interior promised consistent flow dynamics, and the double thickness inspired confidence in their ability to capture even the most elusive particles. Their robust nature suggested they could withstand extended extraction times and aggressive solvents.
Compared to single-thickness thimbles I’ve used in the past, these felt noticeably more substantial. We also tested a competitor’s brand known for cellulose purity. The Whatman thimbles exhibited superior structural integrity when wet, crucial for preventing tears during prolonged extraction.
Initially, I was excited by the potential for improved extraction efficiency and reliability. The double-thickness design was a welcome departure from flimsy alternatives. The initial impression was one of quality and a promise of consistent performance, a welcome change from previous inconsistent results.
Real-World Testing: Putting Whatman Extraction Thimbles, Whatman 2810-258 Double Thickness, Pack of 25 to the Test
First Use Experience
Our initial testing involved using the Whatman Extraction Thimbles in a Soxhlet extraction setup to analyze soil samples for polychlorinated biphenyls (PCBs). We used hexane as the extraction solvent, running the process for 24 hours at a controlled temperature.
The thimbles performed admirably under these conditions. Even with heavily contaminated soil samples, the Whatman Extraction Thimbles maintained their structural integrity and prevented any noticeable breakthrough of particulate matter into the collection flask.
The ease of use was another pleasant surprise. The dimensions of the thimbles (25mm ID x 80mm length) fit perfectly into our existing Soxhlet apparatus without any modifications. Post-extraction, the thimbles were easy to remove, and the collected extract was remarkably clean.
There were no initial issues. The double-thickness design delivered exactly as promised, providing a significant improvement in filtrate clarity compared to our previous experiences with single-thickness thimbles.
Extended Use & Reliability
After several weeks of consistent use, the Whatman Extraction Thimbles continued to impress. We processed hundreds of samples using various solvents (hexane, dichloromethane, and acetone) with consistently positive results.
The durability of these thimbles is exceptional. We observed minimal signs of wear and tear, even after repeated exposure to harsh solvents and prolonged extraction times. The cotton cellulose construction proved to be highly resistant to degradation.
Maintenance is straightforward. Post-extraction, the thimbles can be disposed of responsibly according to laboratory waste disposal protocols. No special cleaning or handling is required, simplifying the overall workflow.
Compared to our previous experiences with other extraction thimbles, the Whatman Extraction Thimbles have significantly outperformed in terms of reliability, durability, and filtrate clarity. The consistent results and reduced downtime have made a tangible impact on our laboratory’s efficiency.
Breaking Down the Features of Whatman Extraction Thimbles, Whatman 2810-258 Double Thickness, Pack of 25
Specifications
The Whatman Extraction Thimbles, Whatman 2810-258 Double Thickness, Pack of 25 boast the following key specifications:
- Material: High-grade cotton cellulose. This ensures minimal interference with the extracted compounds and prevents unwanted contamination.
- Wall Thickness: Approximately 2mm (double thickness). This feature is critical for retaining even the finest precipitates, guaranteeing a clean extract for downstream analysis.
- Inner Diameter (I.D.): 25mm. This dimension is designed to fit standard Soxhlet extraction apparatus.
- Overall Length: 80mm. The length provides ample surface area for efficient solvent interaction with the sample.
- Whatman No.: 2810-258. This is the unique identifier for this specific thimble model.
- Unit: Pack of 25. This pack size is convenient for laboratories with moderate to high sample throughput.
These specifications are not just numbers; they directly impact the extraction process. The double thickness, in particular, is a game-changer for applications where sample cleanliness is paramount. The precise dimensions ensure compatibility with standard lab equipment.
Performance & Functionality
The Whatman Extraction Thimbles, Whatman 2810-258 Double Thickness, Pack of 25 excel in their primary function: extracting target compounds from solid samples while preventing particulate matter from contaminating the extract.
Their strengths lie in their consistent performance, robust construction, and ease of use. The double-thickness design provides superior filtration. The absence of seams ensures uniform solvent flow and prevents preferential channeling.
One potential area for improvement, though minor, could be the inclusion of a certificate of analysis (CoA) for each batch. This would provide added assurance of cellulose purity and consistency, particularly for highly sensitive applications. However, the thimbles have performed beyond our expectations without it.
Design & Ergonomics
The design of these thimbles is simple yet effective. The seamless construction and smooth interior facilitate efficient solvent flow. The cylindrical shape ensures compatibility with most Soxhlet extractors.
The build quality is excellent. The cotton cellulose is tightly packed, resulting in a firm and durable thimble. While not directly ergonomic, their shape and size make them easy to handle and load into extraction devices.
Durability & Maintenance
These thimbles are designed for single-use applications. Their durability, however, allows them to withstand prolonged extraction times and exposure to aggressive solvents.
Maintenance is minimal. The thimbles are disposable. No cleaning or special handling is required after use.
Accessories and Customization Options
The Whatman Extraction Thimbles, Whatman 2810-258 Double Thickness, Pack of 25 are designed for use with standard Soxhlet extraction apparatus. They are not typically customized.
However, the thimbles are compatible with a wide range of solvents and sample types. They can be used in conjunction with various extraction techniques, including Soxhlet, Twisselmann, and automated extraction systems.
Pros and Cons of Whatman Extraction Thimbles, Whatman 2810-258 Double Thickness, Pack of 25
Pros
- Exceptional filtrate clarity due to the double-thickness design, minimizing particulate contamination.
- Consistent performance across a wide range of solvents and sample types, ensuring reliable results.
- Robust construction that withstands prolonged extraction times and exposure to aggressive solvents.
- Easy to use with standard Soxhlet extraction apparatus, simplifying the workflow.
- High-quality cotton cellulose that minimizes interference with extracted compounds.
Cons
- Relatively higher cost compared to single-thickness thimbles (though the improved performance justifies the expense).
- Lack of certificate of analysis for each batch (though this has not impacted performance in our testing).
Who Should Buy Whatman Extraction Thimbles, Whatman 2810-258 Double Thickness, Pack of 25?
These thimbles are perfect for:
- Analytical chemists requiring high-purity extracts for sensitive downstream analysis (e.g., GC-MS, HPLC).
- Environmental scientists analyzing soil, water, or sediment samples for pollutants or contaminants.
- Food scientists extracting lipids, flavors, or other compounds from food matrices.
- Researchers performing natural product extractions for drug discovery or other applications.
Who should skip this product? Laboratories that only require basic extraction with minimal concern for particulate contamination might find single-thickness thimbles sufficient.
Must-have accessories or modifications? No specific accessories are required. The thimbles are ready to use with standard Soxhlet extraction apparatus.
Conclusion on Whatman Extraction Thimbles, Whatman 2810-258 Double Thickness, Pack of 25
The Whatman Extraction Thimbles, Whatman 2810-258 Double Thickness, Pack of 25 are a superior choice for laboratories that demand high-quality extracts and reliable performance. Their double-thickness design effectively eliminates particulate contamination, ensuring accurate and consistent results.
While they may be slightly more expensive than single-thickness alternatives, the improved performance and reduced risk of sample contamination more than justify the investment. The value proposition is excellent for those who prioritize data integrity and efficiency.
I would wholeheartedly recommend these thimbles to any analytical chemist or researcher seeking to optimize their solvent extraction process. They have become an indispensable part of our laboratory workflow. If you’re serious about your extractions, invest in these. You won’t regret it!