Whatman 1213Y26PK Filter Paper Circles 4 to 7 µm 110 mm Pack of 100

Description

Product Overview

The Whatman 1213Y26PK quantitative filter paper circles are precision‑engineered to meet the demanding needs of modern laboratories. Each circular sheet measures 110 mm in diameter and features a tightly controlled pore size range of 4 to 7 microns, delivering the consistency required for accurate quantitative analysis. Manufactured by Whatman, a trusted name in laboratory filtration, these Grade 595 papers provide reliable performance across a broad spectrum of applications, from chemical synthesis to environmental monitoring. The pack contains 100 individually wrapped circles, ensuring sterility and ease of handling while minimizing waste and storage space.

Usage

These filter paper circles are designed for use in standard laboratory filtration setups, including vacuum filtration units, gravity filters, and syringe filters. Their 110 mm size fits most common filter holders, making them a versatile choice for routine sample preparation, precipitation, and clarification tasks. Researchers in chemistry, biochemistry, microbiology, and environmental science will find them especially useful for tasks such as isolating precipitates, removing particulates from liquid samples, and preparing extracts for downstream analysis. The consistent pore size ensures reproducible flow rates and retention of target analytes, which is critical for quantitative assays and quality‑controlled processes.

Why Choose Us

Choosing Whatman filter paper means selecting a product backed by decades of scientific expertise and rigorous quality assurance. Each batch undergoes strict testing to confirm pore size distribution, thickness, and ash content, guaranteeing that the paper meets the exacting standards of Grade 595. The packaging of 100 circles reduces the need for frequent reordering, saving time and operational costs. Additionally, Whatman’s global support network provides technical assistance, ensuring that users can optimize their filtration protocols and troubleshoot any issues quickly.

Key Features

• Uniform 4‑to‑7 micron pore size delivers consistent filtration performance.
• Grade 595 quality ensures low ash content and high chemical resistance.
• 110 mm diameter fits standard laboratory filter holders for easy integration.
• Pack of 100 circles reduces inventory management and provides cost efficiency.
• Dedicated Whatman technical support offers guidance and troubleshooting.

FAQ

What types of samples can be filtered with these circles?

The circles are suitable for a wide range of liquid and solid samples, including aqueous solutions, organic solvents, cell culture media, and environmental water samples. They effectively remove particulates, precipitates, and microbial debris while preserving the integrity of the analyte.

Can the filter paper be used with vacuum filtration systems?

Yes, the 110 mm diameter is compatible with most vacuum filtration apparatuses. The paper’s robust structure tolerates the pressure differentials typical of vacuum filtration without tearing or deforming.

How should the filter paper be stored to maintain its performance?

Store the circles in a cool, dry place away from direct sunlight. The individual foil wrappers protect the paper from moisture and contaminants, preserving its pore structure until use.

Is the filter paper compatible with acidic or basic solutions?

Whatman Grade 595 filter paper exhibits excellent chemical resistance, making it suitable for both acidic (pH 1–2) and basic (pH 12–13) environments. However, extreme conditions should be tested on a small scale first to confirm compatibility with specific reagents.

What support is available if I encounter issues during filtration?

Whatman provides comprehensive technical support, including protocol optimization, troubleshooting guides, and direct assistance from experienced scientists. Users can contact the support team via phone, email, or the online portal.