Filter Paper Supertek Scientific Qualitative 185 mm Pack of 100 Sheets

Description

Product Overview

Supertek Scientific’s Qualitative Filter Paper is engineered for laboratory environments where precision and reliability are paramount. Each sheet measures 185 mm, providing a generous surface area for sample handling, and the pack contains 100 sheets, ensuring you have ample supply for routine and high‑throughput workflows. The paper is made from virgin cellulose fibers, a material known for its uniform pore structure and chemical inertness, which contributes to a consistent 9 nm retention capability. This retention level is ideal for capturing fine particulates while allowing the desired analytes to pass through, supporting a wide range of qualitative analyses such as spot testing, thin‑layer chromatography, and preliminary sample clarification. The medium flow and retention rates strike a balance between speed and resolution, reducing processing time without sacrificing analytical quality. With a product weight of 9.59 ounces and compact dimensions of 7.28 x 7.28 x 0.04 inches, the pack is easy to store in standard lab cabinets or drawers. The filter paper is not discontinued, and its best‑seller rank of #55 in the Qualitative Lab Filter Paper category reflects strong market acceptance among scientists and technicians.

Usage

Designed for versatility, this filter paper excels in a variety of laboratory settings. Whether you are conducting environmental testing, pharmaceutical quality control, food safety analysis, or academic research, the paper’s 9 nm retention ensures that microscopic contaminants are effectively trapped while allowing target compounds to migrate. Its medium flow rate is particularly advantageous for procedures that require rapid filtration without compromising the clarity of the filtrate, such as preparing samples for spectroscopic analysis or setting up chromatography plates. The pack of 100 sheets supports high‑volume laboratories, enabling batch processing of multiple samples in a single day. Users appreciate the ease of handling; the sheets are robust enough to withstand gentle handling yet thin enough to conform to standard filtration apparatuses, including funnel assemblies, vacuum manifolds, and gravity‑driven setups. The product’s compatibility with a broad range of solvents and reagents further expands its applicability, making it a go‑to choice for both aqueous and organic phase filtrations.

Why Choose Us

Choosing Supertek Scientific means selecting a partner committed to quality and consistency. Our Qualitative Filter Paper undergoes rigorous quality control checks at every production stage, from raw fiber selection to final sheet cutting, guaranteeing uniform pore size and retention performance across the entire pack. The use of virgin cellulose eliminates the variability associated with recycled fibers, delivering a cleaner baseline for analytical results. Supertek’s manufacturing facilities adhere to ISO‑9001 standards, and each batch is accompanied by a certificate of analysis that details key parameters such as thickness, basis weight, and retention efficiency. In addition to product excellence, we provide responsive technical support; our team of experienced scientists is available to assist with method development, troubleshooting, and optimization of filtration protocols. We also offer flexible ordering options and fast shipping, ensuring that your laboratory never experiences downtime due to supply shortages.

Key Features

• Virgin cellulose fibers deliver consistent 9 nm retention for reliable qualitative analysis.
• Medium flow rate reduces filtration time while maintaining clear filtrate quality.
• Generous 185 mm sheet size accommodates a wide range of sample volumes and apparatuses.
• Pack of 100 sheets ensures ample supply for high‑throughput laboratory workflows.
• Dedicated technical support and detailed certificates of analysis for every batch.

FAQ

What types of solvents can be used with this filter paper?

The filter paper is chemically inert and compatible with most aqueous solutions, organic solvents such as ethanol, methanol, acetone, and common laboratory reagents. For highly aggressive solvents, we recommend a brief compatibility test before full‑scale use.

Can this filter paper be used for quantitative applications?

While primarily designed for qualitative filtration, the uniform pore structure and consistent retention make it suitable for semi‑quantitative assays where precise particle capture is required. For fully quantitative methods, we suggest validating the paper’s performance against your specific analytical protocol.

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

Store the sheets in a cool, dry environment away from direct sunlight and moisture. Keeping the pack in its original sealed container helps protect the paper from humidity and airborne contaminants, preserving its filtration characteristics over time.

Is there a recommended disposal method for used filter paper?

Used filter paper should be disposed of according to your institution’s hazardous waste guidelines, especially if it has been in contact with toxic or biohazardous substances. For non‑hazardous samples, the paper can be placed in regular waste streams after confirming it meets local disposal regulations.

What warranty or guarantee does Supertek Scientific provide?

We stand behind the quality of our products with a 30‑day satisfaction guarantee. If you encounter any issues related to product performance, contact our customer service team for a replacement or refund, subject to verification of the problem.