Low Retention Pipette Tips EarthOx PTSLFR100 96‑Tip Sterile Filter

Description

Product Overview

EarthOx low‑retention pipette tips are engineered to deliver precise liquid handling for small‑volume applications ranging from 10 to 100 µL. The tips are manufactured from high‑quality polypropylene that resists chemical interaction and maintains dimensional stability across a wide temperature range. Each tip incorporates a built‑in filter membrane that captures aerosols and prevents cross‑contamination, a critical requirement for molecular biology protocols such as PCR, qPCR, and next‑generation sequencing library preparation. The filter is positioned at the tip’s distal end, providing a barrier without compromising flow rate, allowing users to dispense liquids smoothly while protecting downstream reactions.

The design follows a universal geometry that fits the majority of standard pipettors, including Eppendorf, Gilson, and many other brands, with the exception of Rainin devices. The 96‑tip rack format aligns with common laboratory automation platforms, enabling seamless integration with robotic liquid handling systems. All tips are supplied sterile, DNase‑ and RNase‑free, and meet stringent quality control standards to ensure reproducibility. The product model PTSLFR100 is identified by its low‑retention tip profile, which reduces liquid adhesion to the inner surface, minimizing volume loss and improving accuracy in quantitative assays.

Physical specifications list a compact footprint of 5 × 3.5 × 3 inches and a lightweight mass of 3.84 ounces per rack, facilitating easy storage and handling. The manufacturing process includes gamma irradiation for sterility and a final visual inspection to detect any defects such as tip deformation or filter irregularities. The product’s best‑seller rank in the Industrial & Scientific category reflects its acceptance among research laboratories, while the 3.6‑star rating from thirty customer reviews highlights consistent performance and reliability in everyday use.

EarthOx is committed to sustainable manufacturing practices, utilizing recyclable packaging materials and minimizing waste during production. The tip racks are supplied in cardboard boxes that can be easily broken down for recycling, and the polypropylene raw material is sourced from suppliers that adhere to environmental standards. This focus on eco‑friendly processes aligns with the growing demand for greener laboratory consumables without compromising product performance.

Usage

These low‑retention tips are ideally suited for routine molecular biology workflows, including DNA extraction, RNA purification, enzyme assays, and high‑throughput screening. The filter protects sensitive enzymatic reactions from aerosol‑borne contaminants, making the tips valuable for applications where sample integrity is paramount. Laboratories that process clinical specimens benefit from the sterile, contaminant‑free environment provided by the tips, reducing the risk of false‑positive results.

The universal compatibility allows researchers to employ the tips across multiple instruments without the need for dedicated consumables. In automated platforms, the 96‑tip rack can be loaded directly into the deck, supporting continuous operation for large sample sets. The low‑retention design also shortens dispensing time, which is advantageous in time‑critical protocols such as real‑time PCR where rapid cycling is essential.

Researchers performing cell culture media transfers also benefit from the low‑retention design, as the tips reduce residual volume that could otherwise alter media composition. The sterile barrier ensures that cell lines remain uncontaminated, supporting consistent growth conditions across experiments.

Why Choose Us

Choosing EarthOx means selecting a supplier that prioritizes product consistency and rigorous testing. Each batch undergoes quantitative assessment of tip dimensions, filter pore size, and liquid retention characteristics to guarantee that performance matches the specifications advertised. The company’s quality management system is ISO‑9001 certified, providing an additional layer of assurance for laboratories that require traceable documentation and compliance with regulatory standards.

Beyond the product itself, EarthOx offers responsive technical support and a clear return policy for defective items. Customers can access detailed usage guides, troubleshooting tips, and compatibility charts through the company’s online portal. This commitment to service helps laboratories maintain uninterrupted workflows and quickly resolve any issues that may arise during routine operations.

Key Features

• Integrated filter membrane at the tip tip prevents aerosol contamination, safeguarding sensitive assays and reducing the need for additional filtration steps.
• Low‑retention polypropylene construction minimizes liquid adhesion, improving accuracy for volumes as low as 10 µL.
• Sterile, DNase‑ and RNase‑free packaging ensures sample purity and compliance with molecular biology standards.
• Universal 96‑tip rack fits most pipettors and automated liquid handling systems, streamlining workflow integration.
• Comprehensive technical support and ISO‑9001 quality assurance provide reliable performance and peace of mind for research labs.

FAQ

Can these tips be used with Rainin pipettes?

No. The tip geometry is not compatible with Rainin pipettes, which require a different tip design. Users should select a pipette model that matches the universal tip profile for optimal performance.

What is the pore size of the built‑in filter?

The filter membrane is rated at 0.2 µm pore size, which effectively blocks particles and aerosols while allowing free flow of liquids. This size is suitable for most molecular biology applications where contamination control is essential.

How are the tips sterilized?

All tips undergo gamma irradiation after manufacturing to achieve sterility. This method ensures that the tips are free from microbial contamination without leaving residues that could interfere with sensitive assays.

Is there a warranty or return policy?

EarthOx provides a 30‑day return window for any defective or damaged racks. Customers can contact technical support to arrange a replacement or refund, and the company maintains documentation for traceability in compliance‑focused environments.