Product Description
LIGHT LABS is proud to offer the Sorenson BioScience 20 µL LTS-Compatible Low Retention Barrier Pipette Tip (Cat # 87940T) — a LIGHT LABS exclusive low retention version of the Sorenson 87940, combining LTS compatibility for Rainin LiteTouch™ pipettors with low retention surface technology for maximum sample recovery in the critically small 20 µL volume range. The 87940T is available exclusively through LIGHT LABS — providing Rainin LiteTouch™ pipettor users with low retention performance in an LTS-compatible barrier tip at the 20 µL scale where sample adsorption to the tip wall is proportionally most impactful.
At 20 µL, the ratio of tip wall surface area to sample volume is substantially higher than in larger tip formats — making the low retention surface treatment of the 87940T especially valuable at this scale. Even a small amount of non-specific adsorption of DNA, RNA, protein, enzyme, or other precious biological material to the tip wall can represent a meaningful percentage of a 20 µL aliquot, significantly impacting downstream assay results, quantitation accuracy, and reproducibility. The low retention surface of the 87940T minimizes this adsorption — ensuring that maximum sample is delivered from the tip and minimum sample is lost to the wall — a critical advantage for high-value or limiting samples at micro-volume scale.
The LTS (LiteTouch System) design is specifically engineered with the precise geometry for effortless sealing and ejection on Rainin LiteTouch™ pipettor nozzles — requiring significantly less insertion and ejection force than universal tips, reducing hand and wrist fatigue during repetitive high-throughput micro-volume pipetting. The 87940T is additionally compatible with the Sequence BioTech 96-channel Benchtop Pipettor for automated high-throughput 96-well pipetting. The inert polyethylene (PE) barrier filter prevents aerosols and liquids from entering the pipettor without trapping liquid or shedding particulates. Graduation lines provide quick accuracy checks. Fine point delivery system ensures crisp, precise micro-volume dispensing. MultiRack format: 96 tips per rack, 10 racks per pack, 5 packs per case (4,800 tips total). LIGHT LABS is your trusted source for Sorenson BioScience pipette tips.
KEY FEATURES
- LTS (LiteTouch System) compatible — specifically engineered for Rainin LiteTouch™ pipettors; effortless sealing and ejection; NOT a universal-fit tip
- Compatible with Sequence BioTech 96-channel Benchtop Pipettor — extends compatibility to automated high-throughput 96-well pipetting applications
- Less insertion and ejection force than universal tips — reduced hand and wrist fatigue during repetitive 20 µL pipetting workflows
- Low retention surface treatment — most impactful at 20 µL scale where tip wall surface area to sample volume ratio is highest; minimizes adsorption of DNA, RNA, proteins, enzymes, and precious biological samples; exclusive LIGHT LABS variant (87940T)
- Inert polyethylene (PE) filter barrier — prevents aerosol and liquid from entering pipettor; will NOT trap liquid or contaminate samples
- Graduation lines — quick accuracy checks during micro-volume pipetting
- Fine point delivery system — crisp, precise 20 µL dispensing with minimal dead volume
- 20 µL format — critical micro-volume range for PCR, qPCR, enzyme reactions, and precision micro-volume liquid handling
- MultiRack format — 96 tips per refillable, stackable rack; 10 racks per pack; 5 packs per case
- Sterile — gamma irradiated
- Certified RNase-free, DNase-free, and nonpyrogenic
- Made from 100% virgin polypropylene (PP)
- Exclusive low retention variant available only through LIGHT LABS
SPECIFICATIONS
| Attribute | Detail |
|---|---|
| Catalog Number | 87940T |
| Brand | Sorenson BioScience |
| Product Name | 20 µL LTS-Compatible Low Retention Barrier Tip — MultiRack |
| Volume | 20 µL |
| Pipettor Compatibility | Rainin LiteTouch™ (LTS) pipettors; Sequence BioTech 96-channel Benchtop Pipettor |
| Barrier Type | Inert polyethylene (PE) filter — liquid trap-free |
| Surface Treatment | Low Retention |
| Graduation Lines | Yes |
| Delivery | Fine point |
| Material | 100% virgin polypropylene (PP) |
| Color | Clear |
| Sterility | Sterile (gamma irradiated) |
| Certifications | RNase-free, DNase-free, nonpyrogenic |
| Rack Format | MultiRack |
| Packaging | 96 tips/rack; 10 racks/pack; 5 packs/case |
| Quantity | 4,800 tips/case |
| Exclusive Format | Low retention (87940T) — LIGHT LABS exclusive |
WHY LOW RETENTION IS ESPECIALLY CRITICAL AT 20 µL
| Volume | Surface Area:Volume Ratio | Adsorption Impact |
|---|---|---|
| 20 µL | High | Even small adsorption = significant % of total sample |
| 200 µL | Medium | Moderate impact on sample recovery |
| 1000 µL | Low | Minimal % impact from adsorption |
The 87940T's low retention surface is most impactful at 20 µL — where every microliter counts.
LTS-COMPATIBLE vs. UNIVERSAL FIT — CRITICAL DISTINCTION
| Feature | LTS-Compatible (87940T) | Universal Fit (77260T) |
|---|---|---|
| Pipettor Compatibility | Rainin LiteTouch™ + Sequence BioTech 96-ch | All standard pipettors |
| Insertion Force | Significantly less | Standard |
| Ejection Force | Significantly less | Standard |
| Seal Quality | Optimized for LTS nozzle | Universal seal |
| Best For | Rainin LiteTouch™ users | All other pipettor brands |
APPLICATIONS
- PCR and qPCR setup requiring precise 20 µL micro-volume dispensing with Rainin LiteTouch™ pipettors
- Enzyme reaction setup at 20 µL scale requiring maximum sample recovery
- High-value or limiting sample pipetting requiring minimum tip wall adsorption
- Automated 96-well pipetting with Sequence BioTech 96-channel Benchtop Pipettor
- DNA, RNA, and protein pipetting requiring low retention at micro-volume scale
- Restriction digestion, ligation, and cloning reactions at 20 µL scale
- Any Rainin LiteTouch™ pipettor application requiring 20 µL LTS-compatible tips with barrier and low retention
