Whatman Grade GF/A Glass Microfibre Filter | 1820-8013

Description

Specifications Table

Product Description

When precision matters in your lab work, the Whatman Grade GF/A Glass Microfibre Filter stands out as a reliable choice for researchers, students, and educators across India. Designed for high-efficiency filtration, these glass microfiber filters combine fast flow rates with exceptional particle retention, making them indispensable for applications like air pollution monitoring, liquid clarification, and gravimetric analysis.

The GF/A grade is known for its durability and chemical resistance, ensuring consistent performance even with aggressive solvents or corrosive samples. Whether you’re filtering suspended solids from water samples or collecting particulate matter for environmental studies, these filters deliver accurate results every time. Their smooth surface also minimizes particle loss during transfer, a critical factor in quantitative analysis.

At eqipped, we understand the importance of having the right tools for your experiments. That’s why we offer Whatman GF/A filters in a wide range of sizes to match your specific requirements. From small 1.3cm discs for micro-scale work to large 46x57cm sheets for industrial applications, you’ll find the perfect fit for your protocol. Each pack is carefully sealed to maintain purity until you’re ready to use them.

Upgrade your lab filtration setup today. Browse our selection of Whatman GF/A filters and experience the difference quality makes.

These filters are particularly valued in academic labs where students are learning fundamental techniques. The consistent performance helps eliminate variables in experiments, allowing focus on the science rather than equipment limitations. For environmental researchers, the GF/A grade’s ability to handle high particulate loads makes it ideal for air quality studies in India’s diverse climatic conditions.

The glass microfiber composition also means these filters can withstand autoclaving, making them suitable for sterile applications when properly prepared. This versatility extends their use across microbiology, analytical chemistry, and environmental science disciplines. When you buy Whatman filters from eqipped, you’re getting a product trusted by professionals worldwide, now conveniently available for Indian laboratories.

FAQs

What’s the difference between GF/A and other Whatman glass microfiber grades?

GF/A filters have a nominal pore size of 1.6 micrometers, offering faster flow rates than finer grades like GF/C (1.2 micrometers) but with slightly lower particle retention. They’re ideal when you need a balance between speed and efficiency. For comparison, GF/B has larger pores (1.0 micrometer nominal) for even faster flow but less retention.

Can I use GF/A filters for sterile filtration?

While GF/A filters can be autoclaved, they’re not typically used for sterilizing filtration of liquids. Their pore size is too large to reliably remove bacteria. For sterile filtration, consider membrane filters with 0.22 or 0.45 micrometer pores. However, GF/A filters are excellent for pre-filtration to extend the life of membrane filters.

How do I know which size filter to buy for my air sampler?

Check your sampler’s manufacturer specifications for recommended filter sizes. Most standard personal air samplers use 3.7cm filters, while area samplers often use 4.7cm. The filter should fit snugly in the cassette without gaps that could allow particle bypass. When in doubt, consult your equipment manual or contact eqipped’s support team for guidance.

Are these filters suitable for DNA/RNA extraction protocols?

GF/A filters can be used for initial sample clarification before nucleic acid extraction, but they’re not typically used in the extraction process itself. The glass fibers might bind nucleic acids, potentially reducing yield. For molecular biology applications, consider specialized filters designed for nucleic acid work or use GF/A only for pre-filtration steps.

What’s the shelf life of Whatman GF/A filters?

When stored properly in their original packaging, these filters have an indefinite shelf life. The glass microfiber material doesn’t degrade over time. However, for critical applications, it’s good practice to use filters within 2-3 years of purchase. Always inspect filters before use for any signs of damage or contamination.