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Whatman 7141-114 Cellulose Nitrate Membrane Sterile Filter with Grid, No Pad, 47mm Diameter, 0.45 Micron (Pack of 100)
BHD 47
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Sterile gridded Cellulose nitrate membrane filters by Whatman; recommended for the majority of routine applications; this grade is manufactured under controlled cleanroom conditions.
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Product Details
| Item Weight | 1 lbs (450 grams) |
Who Should Buy?
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Microbiologists
Ideal for isolating bacteria and microorganisms from liquids in laboratory experiments and research activities.
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Water Testing
Effective for filtering water samples to ensure compliance with safety standards in environmental laboratories.
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Pharmaceuticals
Suitable for sterilization and clarification processes in the pharmaceutical industry ensuring product purity and safety.
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General Filtration
Not suitable for heavy particulate filtration where larger pore sizes or robust materials are required.
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Oil Filtration
Ineffective for filtering oils or viscous fluids due to pore clogging and material incompatibility.
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Field Use
Not recommended for outdoor or field applications where sterility and controlled conditions cannot be guaranteed.
Product Description
Whatman 7141-114 Cellulose Nitrate Membrane Sterile Filter with Grid, No Pad, 47mm Diameter, 0.45 Micron (Pack of 100)
Customer Questions & Answers
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Question:
What is the primary use of the Whatman 7141-104 Cellulose Nitrate Membrane Sterile Filter?
Answer: The Whatman 7141-104 Cellulose Nitrate Membrane Sterile Filter is primarily used for sterile filtration and microbiological analysis. Its 0.45 micron pore size effectively retains bacteria and particulates, making it ideal for laboratory settings. Common applications include water testing, air monitoring, and the preparation of culture media in microbiology. The grid design aids in easy colony counting, enhancing efficiency during experiments. -
Question:
Can the Whatman 7141-104 membrane filter be used for air sampling?
Answer: Yes, the Whatman 7141-104 membrane filter is suitable for air sampling. This filter can effectively capture airborne microorganisms due to its 0.45 micron pore size. For instance, researchers can use this filter in environmental monitoring to quantify microbial contamination levels in air, ensuring air quality assessments are accurate and comprehensive. -
Question:
What are the benefits of using membrane filters over other types?
Answer: Membrane filters like the Whatman 7141-104 offer several benefits, such as high efficiency in retaining particulates and microbes, which is crucial for purity in laboratory processes. The cellulose nitrate composition provides excellent flow rates and minimizes the risk of contamination. These filters are also compatible with various solvents and can withstand different pH levels, making them versatile for multiple applications in analytical work. -
Question:
How should the Whatman 7141-104 filters be stored?
Answer: To maintain the integrity of the Whatman 7141-104 filters, they should be stored in a cool, dry place away from direct sunlight. It is recommended to keep them in their original packaging until use to minimize exposure to contaminants. Proper storage preserves the filters' sterile conditions and ensures optimal performance during applications. -
Question:
Is the Whatman 7141-104 filter suitable for biotechnology applications?
Answer: Absolutely, the Whatman 7141-104 filter is ideal for various biotechnology applications. Its sterile and precise filtration ensures the removal of unwanted microorganisms, which is essential when working with sensitive biological samples or cell cultures. Researchers in biotechnology utilize these filters for sample preparation, sterilizing fluids, or even in assay setups, ensuring reliability and accuracy in their results. -
Question:
Can I use the Whatman 7141-104 filters in a laboratory for clinical trials?
Answer: Yes, the Whatman 7141-104 filters are suitable for laboratory use in clinical trials. Their sterile feature ensures that the samples used during trials are free from contamination, which is vital for maintaining the integrity of clinical data. For instance, biopharmaceutical labs often utilize these filters for preparing solutions or culture media to ensure clean environments for conducting tests. -
Question:
How do I choose the right pore size for membrane filtration?
Answer: Choosing the right pore size, like the 0.45 microns of the Whatman 7141-104, depends on the type of particles to be filtered. For microbiological studies, a 0.45-micron filter effectively removes bacteria while allowing smaller particles to pass through. This size is ideal for applications like water quality testing, where retaining microbial content is crucial while keeping other substances filterable. -
Question:
What makes the grid design on the Whatman 7141-104 filter useful?
Answer: The grid design on the Whatman 7141-104 filter enhances usability by providing a clear framework to count colonies during microbiological assessments. This feature simplifies the identification and enumeration of bacteria during experiments, helping researchers achieve consistent and reliable results. It is particularly beneficial in laboratory practices requiring thorough analysis of microbial growth. -
Question:
Are the Whatman 7141-104 filters compatible with aggressive solvents?
Answer: Yes, the Whatman 7141-104 is compatible with various solvents, including many aggressive ones, allowing researchers to use them in diverse applications, such as filtering organic solutions. Nonetheless, it’s essential to consult specific guidelines regarding compatibility, ensuring that the solvent does not affect filter integrity during its application, especially in analytical procedures. -
Question:
Where can I buy the Whatman 7141-104 Cellulose Nitrate Membrane Sterile Filter with Grid in Bahrain?
Answer: You can buy the Whatman 7141-104 Cellulose Nitrate Membrane Sterile Filter with Grid, 47mm Diameter, 0.45 Micron, Pack of 100 on Ubuy. Ubuy is a reputable online retailer that offers this product, ensuring you can acquire high-quality membrane filters for your laboratory or research needs with a straightforward purchasing process.
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BHD 47
Order now and get it around Saturday, July 18
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Features & Benefits
- Improved strength and flexibility to tolerate abuse without sacrificing integrity
- Low extractable levels-approximately 2%
- Autoclavable at 121°C (250°F), with low shrinkage
- Can be heated to 130°C (266°F) without damage
- Gridded surface (3.1mm intervals) make filters ideal for colony counting after incubation
- Has a noticeably improved flexibility; is made to tolerate abuse