Diamond PosiStop LTS Filter Pipette Tips 20 µL Sterile 96‑Rack

Description

Product Overview

Diamond PosiStop LTS filter pipette tips are engineered to meet the demanding requirements of modern molecular biology laboratories. Each tip is manufactured from medical‑grade virgin polypropylene, a polymer known for its chemical inertness and lack of metal contaminants. The material choice guarantees that the tips will not leach any substances that could interfere with sensitive assays such as PCR, qPCR, or next‑generation sequencing library preparation. The tips feature a clear, graduated marking that allows users to accurately dispense volumes as low as 20 µL, providing a reliable visual cue for precise liquid handling.

The design incorporates a unique positive‑stop cylinder that creates a secure, leak‑free seal when the tip is attached to a compatible LTS pipettor. This positive seal eliminates the risk of air bubbles or back‑pressure that can compromise volume accuracy, especially when working with viscous or volatile liquids. The tips are also sterile, having undergone rigorous sterilization processes that ensure they are free from viable microorganisms, DNase, RNase, pyrogens, PCR inhibitors, and endotoxins. This level of purity is essential for experiments where even trace contaminants can skew results.

Each package contains 96 individually pre‑racked tips, organized in a rack that fits seamlessly into standard laboratory tip racks. Ten such racks are supplied per box, providing a total of 960 tips ready for immediate use. The pre‑racked format not only speeds up workflow by eliminating the need to manually arrange tips, but it also reduces the chance of cross‑contamination between samples. The packaging dimensions of 13.78 × 7.48 × 5.12 inches and a weight of 4 pounds make the product easy to store on laboratory benches or in dedicated consumable cabinets.

Compatibility is a cornerstone of the product’s design. The tips are fully compatible with Diamond PosiStop LTS pipettors as well as Rainin LTS models, offering flexibility for laboratories that operate mixed equipment fleets. The LTS‑style pipettors benefit from the tip’s positive‑stop feature, which enhances the reproducibility of liquid transfers across a wide range of volumes. This compatibility is verified through extensive testing, ensuring that the tips fit securely without the need for additional adapters or modifications.

Manufactured by Globe Scientific in a state‑of‑the‑art 100 k cleanroom facility, the production process is fully automated, minimizing human contact and further reducing the risk of contamination. Quality control procedures include batch‑level testing for endotoxin levels, nucleic acid contamination, and mechanical integrity. The result is a consumable that consistently meets the high standards required for critical research applications, from gene expression analysis to CRISPR‑Cas9 editing workflows.

Usage

The Diamond PosiStop LTS filter pipette tips are ideal for a broad spectrum of laboratory techniques that demand high purity and precise volume control. Researchers performing quantitative PCR, reverse transcription, or DNA/RNA extraction will benefit from the tips’ DNase‑ and RNase‑free status, which safeguards nucleic acid integrity throughout the protocol. In addition, the sterile nature of the tips makes them suitable for cell culture applications where aseptic technique is paramount.</n

Because the tips are pre‑racked, they are particularly advantageous in high‑throughput settings such as automated liquid handling platforms or 96‑well plate assays. The rack design aligns perfectly with standard robotic tip loaders, allowing seamless integration into automated workflows without the need for manual tip placement. This reduces hands‑on time, minimizes user fatigue, and improves overall laboratory efficiency.

Environmental conditions in most molecular biology labs—controlled temperature, limited humidity, and cleanroom standards—are well‑matched to the performance envelope of these tips. Whether the user is dispensing aqueous buffers, organic solvents, or viscous reagents like glycerol‑based master mixes, the positive‑stop seal maintains consistent performance, preventing leaks or drips that could compromise experimental outcomes.

For educational laboratories, the clear graduation marks serve as an excellent teaching tool, helping students visualize volume measurements and understand the importance of accurate pipetting technique. The tips’ compatibility with both Diamond and Rainin LTS pipettors ensures that they can be adopted across multiple teaching stations without the need for separate consumable inventories.

Why Choose Us

Choosing Diamond PosiStop LTS filter pipette tips means selecting a product that combines rigorous quality assurance with practical design features. Globe Scientific’s commitment to manufacturing in a certified cleanroom environment guarantees that each tip meets stringent purity criteria, providing confidence that your experiments will not be compromised by hidden contaminants.

Our tips are backed by a comprehensive certification program that includes testing for DNase, RNase, pyrogens, PCR inhibitors, and endotoxins. This multi‑layered validation process is rarely offered by generic consumable suppliers, positioning our product as a premium choice for researchers who cannot afford variability in their results.

In addition to product quality, we offer responsive technical support staffed by scientists who understand the nuances of liquid handling. Whether you need assistance with compatibility questions, troubleshooting pipette performance, or guidance on best practices for tip usage, our team is available to help you achieve optimal outcomes.

Our after‑sales service includes a satisfaction guarantee and a streamlined replacement process for any defective batches, ensuring minimal disruption to your workflow. We also provide detailed documentation, including certificates of analysis and material safety data sheets, to support compliance with institutional procurement policies.

By investing in our filter pipette tips, laboratories gain a reliable, high‑performance consumable that reduces the risk of experimental error, saves time, and ultimately contributes to more reproducible scientific findings.

Key Features

• Positive‑stop seal ensures leak‑free, accurate liquid handling for LTS pipettors.
• Sterile, DNase/RNase‑free construction protects nucleic acid integrity in sensitive assays.
• Clear 20 µL graduation marks provide visual volume verification for precise dispensing.
• Pre‑racked 96‑tip racks streamline setup, reduce contamination risk, and save bench time.
• Dedicated technical support and rapid replacement service for any quality concerns.

FAQ

Are these tips compatible with non‑LTS pipettors?

While the tips are optimized for Diamond PosiStop and Rainin LTS models, they can be used with many standard pipettors that accept 20 µL tips, though the positive‑stop feature may not engage fully.

What sterilization method is used for these tips?

The tips are sterilized using gamma irradiation, a method that ensures sterility without leaving residual chemicals that could interfere with downstream applications.

Can the tips be used with organic solvents?

Yes, the virgin polypropylene material is chemically resistant to most common laboratory solvents, making the tips suitable for a variety of assay types.

How are the tips packaged to maintain sterility?

Each rack is sealed in a sterile barrier pouch that is opened only at the point of use, preserving the contaminant‑free environment until the tips are deployed.

What is the shelf life of the product?

When stored in a cool, dry place away from direct sunlight, the tips retain their sterility and performance characteristics for up to 24 months from the date of manufacture.