- Home Page /
- Industrial Supplies /
- Filtration /
- Lab Filters /
- Centrifugal Filters /
- 3kDa Ultra Centrifugal Filter Unit, 0.5mL, Re...
0 ratings
Item #:
107411319
3kDa Ultra Centrifugal Filter Unit, 0.5mL, Regenerated Cellulose RC Membrane, Snap Caps (24/PK)
Item #:
107411319
SCR 1669
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Friday, July 24
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
High protein recovery rate >90%; Quick processing time as little as 10-30 minutes.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Efficiency
These ultrafiltration centrifugal filters provide superior separation of substances, ensuring high purity of samples with 3 kDa membrane for precise molecule size exclusion.
Convenient Packaging
Sold in a pack of 24, these filters are ideal for bulk laboratory use, reducing the need for frequent repurchases and ensuring that researchers always have the tools they need on hand.
Reliable Material
Constructed with regenerated cellulose, these filters are chemically stable and compatible with a wide range of solvents, making them suitable for diverse applications in various laboratory settings.
Product Details
| Item Weight | 0.5 lbs (230 grams) |
Who Should Buy?
-
Laboratory Researchers
Perfect for researchers needing efficient purification and concentration of proteins and nucleic acids in small sample volumes.
-
Biotech Companies
Ideal for biotech firms that require reliable ultrafiltration processes to streamline drug development and analysis.
-
Education Institutions
Useful in academic labs for teaching students about ultrafiltration techniques and the importance of membrane technology.
-
Large Volume Users
Not suitable for users needing to process larger sample sizes due to its 0.5mL capacity limitation.
-
General Filtration Needs
Not ideal for general filtration applications that do not require specific molecular weight cut-offs or ultrafiltration.
-
Rugged Field Use
Not recommended for outdoor use or rugged environments where sample integrity and product durability may be compromised.
Product Description
3kDa Ultra Centrifugal Filter Unit, 0.5mL, Regenerated Cellulose RC Membrane, Snap Caps (24/PK)
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the purpose of the 0.5mL 300kDa Ultrafiltration Centrifugal Filter?
Answer: The 0.5mL 300kDa Ultrafiltration Centrifugal Filter is designed to concentrate and purify biological samples. Using ultrafiltration technology, it allows for the separation of molecules based on size, making it ideal for processes like protein concentration, buffer exchange, and removal of contaminants from samples. Researchers and technicians often use these filters in labs for various applications, including molecular biology and biochemistry experiments, where highly purified samples are crucial. -
Question:
What type of samples can I filter using these tubes?
Answer: These tubes are suitable for filtering a variety of biological samples, including proteins, nucleic acids, and other macromolecules. The regenerated cellulose (RC) membrane is compatible with many aqueous solutions, ensuring that dissolved substances are effectively separated while retaining the desired compounds. This versatility makes them ideal for applications like sample preparation in proteomics and metabolomics research, efficiently isolating substances in your experiments. -
Question:
How does the 300kDa cutoff work in ultrafiltration?
Answer: The 300kDa cutoff refers to the molecular weight threshold at which the ultrafiltration membrane effectively retains larger molecules while allowing smaller ones to pass through. This means that molecules with a mass below 300kDa can be filtered out from your sample, enabling focused analysis of higher molecular weight components. This mechanism is essential when concentrating proteins or other large biomolecules, providing clear and defined results in your analyses. -
Question:
Is the RC membrane compatible with organic solvents?
Answer: The regenerated cellulose (RC) membrane is generally compatible with a range of aqueous solutions but is not recommended for use with strong organic solvents. For optimal performance and sample integrity, it’s best to stick with water-based solutions during filtration. This allows users to effectively separate and purify biological samples without compromising the membrane’s structure, enhancing the reliability of your laboratory procedures. -
Question:
Can these filters be reused?
Answer: These filters are designed for single-use applications to ensure optimal purity and prevent cross-contamination between samples. Reusing them can lead to compromised results, as residual substances may remain in the filter membrane. For best practices in lab settings, using a fresh unit for each sample filtration will enhance the accuracy of your results and maintain the integrity of your samples. -
Question:
How do I properly use the centrifuge tube unit?
Answer: To use the centrifuge tube unit, first load your sample into the filter, ensuring it does not exceed the maximum capacity. Then, place the unit in a compatible centrifuge and spin it at the recommended speed. This process will drive liquid through the membrane, while retaining larger particles. After centrifugation, you'll collect the filtered sample in the receiving tube. This straightforward method streamlines the process of sample preparation in research laboratories, enhancing productivity. -
Question:
What are the storage requirements for these tubes?
Answer: These ultrafiltration tubes should be stored in a cool and dry environment, away from direct sunlight and extreme temperatures. Proper storage helps to maintain the integrity of the regenerated cellulose membrane and prolongs shelf life. Ensuring they are sealed in their original packaging until use will safeguard against contamination and preserve their effectiveness for your filtration needs. -
Question:
What is the benefit of using centrifugal filters over gravity filtration?
Answer: Centrifugal filters offer higher efficiency and faster processing time compared to gravity filtration. By applying centrifugal force, these filters can separate samples quickly, yielding clearer results in a shorter timeframe. This is particularly beneficial in high-throughput lab environments where time is critical, allowing users to manage multiple experiments simultaneously without compromising on quality and reliability of the sample purification. -
Question:
How do I choose the right molecular weight cutoff for my experiments?
Answer: Selecting the appropriate molecular weight cutoff depends on the size of the molecules you wish to retain or exclude. For protein concentration, a 300kDa cutoff like this one is suitable for retaining larger proteins while removing smaller contaminants. It's crucial to consider the specific requirements of your experiment, ensuring that the selected filter aligns with the molecular sizes targeted within your samples, optimizing your research outcomes. -
Question:
Where can I buy 24pk 0.5mL 300kDa Ultrafiltration Centrifugal Filter Centrifuge Tube Unit with Regenerated Cellulose RC Membrane in Seychelles?
Answer: You can purchase the 24pk 0.5mL 300kDa Ultrafiltration Centrifugal Filter Centrifuge Tube Unit with Regenerated Cellulose RC Membrane at Ubuy. Ubuy is a reliable online marketplace that offers a wide selection of lab supplies, ensuring you have access to the necessary tools for your scientific research. Visit the Ubuy website to explore options and secure your filtration units today.
COBETTER Centrifugal Filters Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
0%
-
4 Star
100%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
SCR 1669
Order now and get it around Friday, July 24
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Achieve over 90% protein recovery rate.
- Fast ultrafiltration process in just 10-30 minutes.
- Compatible with a range of macromolecular weights.
- Available in multiple centrifugal filter sizes.
- Conforms to ISO 9001:2015 quality standards.
- Materials meet USP Class VI compliance.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.