Pipette Tips
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100% virgin polypropylene
Mettler Toledo Pipette Tips
Mettler Toledo’s Rainin pipette tips are engineered as high-precision technical components of the liquid handling system, designed to ensure absolute volumetric accuracy and sample purity. These tips are manufactured under cleanroom conditions to meet the "BioClean Ultra" standard, which guarantees the absence of biological contaminants such as DNA, DNase, RNase, Endotoxins, and ATP.
Technically, the design focuses on optimized fluid dynamics, utilizing high-quality virgin polypropylene and ultra-low retention technologies to minimize residual liquid. Whether using the patented LiteTouch System (LTS) for reduced force or traditional universal-fit designs, these tips are critical for maintaining the integrity of sensitive assays in genomics, proteomics, and clinical diagnostics.
BioClean Ultra Purity Standard
The BioClean Ultra standard represents the highest level of technical purity for Rainin pipette tips. Unlike standard laboratory tips, these are rigorously tested and certified to be free of detectable DNA, DNase, RNase, Endotoxins, ATP, Pyrogens, and PCR inhibitors. This technical certification is vital for researchers performing sensitive molecular biology applications where even trace amounts of biological contaminants could degrade the sample or lead to false-positive results. The manufacturing process is fully automated, ensuring that no human contact occurs from the raw material stage to final packaging.
LiteTouch System (LTS) Technical Geometry
The patented LiteTouch System (LTS) is a technical innovation that revolutionizes the interface between the pipette and the tip. By utilizing a cylindrical nozzle design with a positive stop and a thin sealing ring, LTS tips require significantly less force to create a leak-proof seal compared to traditional conical tips. This design ensures that every tip is seated at the exact same depth, which technically improves the volumetric accuracy across all channels in multichannel pipettes. Furthermore, the low ejection force protects the internal mechanical integrity of the pipette and reduces the physical strain on the operator.
Low Retention Technology and Fluid Dynamics
For handling precious or expensive reagents, Rainin offers tips with Low Retention technology. Technically, these tips are modified at the molecular level to create a super-hydrophobic surface. This surface prevents the formation of a liquid film on the interior walls of the tip, ensuring that viscous or low-surface-tension liquids are fully dispensed. By minimizing residual volume, Low Retention tips improve experimental accuracy and maximize the recovery of samples, which is particularly beneficial in applications involving protein research or high-precision genomic assays.
Aerosol-Resistant Filter Tip Protection
Rainin filter tips are engineered to provide a technical barrier against aerosol contamination. The integrated filter is made from high-density polyethylene that blocks the passage of liquid and vapor aerosols during the aspiration cycle. This is a critical safety feature in molecular biology labs, as it prevents cross-contamination between samples and protects the internal shaft of the pipette from corrosive vapors or radioactive materials. The filters are technically validated to ensure they do not contain additives that could leach into the sample, maintaining the chemical integrity of the liquid handling process.
High-Throughput TerraRack and Space-Saving Options
To support the efficiency of high-throughput laboratories, Rainin provides innovative racking solutions like the TerraRack. This technical packaging design is both lightweight and robust, utilizing half the plastic of traditional racks while being fully recyclable. The racks are designed for easy tip loading with both manual and electronic multichannel pipettes. Additionally, space-saving options like nested tip refills allow for the rapid replenishment of empty racks with minimal waste, optimizing laboratory storage and reducing the environmental footprint of liquid handling workflows.
Universal-Fit Tips for Broad Compatibility
While the LTS system provides specialized performance, Mettler Toledo also produces high-quality universal-fit tips for use with pipettes from other manufacturers. These tips technically utilize the same BioClean Ultra materials and manufacturing processes as the LTS versions. The universal design features a flexible thin-wall collar that ensures a secure fit on a wide variety of conical nozzles. This broad compatibility allows laboratories with diverse equipment fleets to standardize on Rainin’s superior purity and performance standards for all their liquid handling needs.
Specialized Extended-Length and Wide-Orifice Tips
To address specific technical challenges, Rainin offers specialized tip geometries, including extended-length and wide-orifice designs. Extended-length tips allow researchers to reach the bottom of narrow tubes and deep-well plates without the pipette shaft touching the vessel walls, technically preventing cross-contamination. Wide-orifice tips are engineered with a larger opening to reduce shear forces, making them ideal for handling delicate samples such as genomic DNA, cultured cells, or highly viscous liquids that would otherwise be damaged or difficult to aspirate through a standard tip.
Material Science and Quality Control
The technical performance of Rainin tips is rooted in advanced material science. Only high-grade, 100% virgin polypropylene is used, ensuring that the tips are free from additives like clarifiers, lubricants, or dyes that could leach into samples. Every production lot undergoes stringent quality control testing to verify mechanical dimensions, surface finish, and purity levels. This technical rigor ensures that every tip delivered to the laboratory provides the consistent performance and reliability necessary for reproducible scientific results across all liquid handling applications.
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