Puretest 20 µL Rainin LTS-compatible pipette tips support low-volume liquid handling on selected pipettes with LTS-style shafts. Filtered and non-filtered options are presented together so laboratories and distributors can choose the correct contamination-control, sterility and packaging configuration without comparing duplicate pages.
Puretest 20 µL Rainin LTS-compatible pipette tips support low-volume liquid handling on selected pipettes with LTS-style shafts. Filtered and non-filtered options are presented together so laboratories and distributors can choose the correct contamination-control, sterility and packaging configuration without comparing duplicate pages.
This consolidated page replaces separate filtered and non-filtered listings. Buyers can compare both configurations under one capacity, reducing duplicate pages while making the ordering decision clearer.
The upper tip section uses an LTS-style cylindrical interface with a limited sealing area. This geometry is intended to reduce the force needed to load and eject tips compared with a conventional tapered friction fit. A positive stop helps limit over-insertion and supports more consistent seating across channels.
The polypropylene shaft tapers toward a fine dispensing orifice. Filtered configurations add an aerosol barrier above the liquid path; non-filtered configurations retain the full unfiltered air path. The filter is not a liquid reservoir and the operating method should prevent the sample from contacting it.
| Selection | Recommended Use | Ordering and Validation Note |
|---|---|---|
| Filtered | PCR/qPCR setup, NGS library preparation, RNA work, clinical or forensic samples and workflows where aerosol carryover must be controlled | Confirm sterility, filter material, cleanliness documents and usable volume for the quoted SKU |
| Non-filtered | Routine buffers, reagent dispensing, general sample preparation and workflows with established contamination controls | Available sterile or non-sterile subject to configuration; confirm surface and packaging |
A filter reduces the available internal air path and changes fluidic behavior. Recheck accuracy, precision, immersion depth, aspiration speed and blow-out when changing between filtered and non-filtered tips.
| Nominal capacity | 20 µL |
|---|---|
| Recommended volume context | low-volume methods up to 20 µL; confirm the pipette range and critical operating volumes |
| Tip interface | LTS-style cylindrical low-force sealing geometry; compatibility must be qualified |
| Tip material | High-purity virgin polypropylene; exact resin and color by SKU |
| Filter | Filtered or non-filtered |
| Retention surface | Standard or low-retention option, subject to SKU confirmation |
| Sterility | Sterile or non-sterile, configuration-dependent |
| Rack format | 96 tips per rack; case and refill quantities confirmed in quotation |
| Pipette context | Selected Rainin manual and electronic single- or multichannel pipettes equipped with LTS shafts |
| Use | Single-use laboratory liquid handling |
| Documentation | Material, cleanliness, sterility and lot documents confirmed for the quoted catalog number |
Nominal capacity and platform context do not constitute a universal performance guarantee. Confirm the current Puretest drawing and validate the exact tip, pipette, liquid and method before routine or regulated use.
These tips are intended as independently manufactured alternatives for selected Rainin pipettes fitted with LTS-style shafts. Compatibility depends on the exact pipette model, channel count, shaft condition, calibration, tip geometry and liquid-handling method. They are not universal tapered tips.
At this capacity, evaporation, immersion depth and liquid retention have a proportionally larger effect on transferred volume. Use filtered tips for contamination-sensitive work and evaluate a low-retention configuration for valuable microliter reagents.
| Application | Recommended Configuration | Why |
|---|---|---|
| PCR and qPCR master-mix setup | Filtered, sterile; cleanliness documents confirmed | Helps control aerosol carryover during low-volume setup |
| NGS library preparation | Filtered, sterile, low-retention where available | Protects sensitive reagents and helps limit residual liquid |
| Enzyme and reagent dispensing | Filtered or non-filtered according to risk | Supports controlled microliter transfers |
| Routine aqueous transfers | Non-filtered; sterile state as required | Avoids unnecessary filter cost where contamination risk is controlled |
Puretest LTS-compatible tips are molded from high-purity virgin polypropylene for laboratory liquid handling. Material color, standard or low-retention surface, filter, sterility and packaging are configuration-specific and must be linked to the quoted SKU.
For molecular-biology workflows, state the required DNase, RNase, human-DNA, PCR-inhibitor, endotoxin or pyrogen limits before ordering. Puretest will confirm which declarations, Certificates of Analysis, Certificates of Conformance, irradiation records and lot-traceability documents apply to the selected configuration. A claim from one option must not be transferred to every tip in the family.
The tips are single-use consumables. Do not wash and reuse tips for analytical work because wetting, cleaning and chemical exposure can alter surface behavior, retention and contamination risk.
The standard presentation is a 96-position rack. Filtered and non-filtered supply, sterile and non-sterile configurations, refill systems, low-retention options and alternative case quantities can be discussed by exact capacity. Puretest also supports evaluation samples, customer catalog numbers, private labels, barcodes, carton artwork and distributor programs.
MOQ, rack color, tips per rack, racks per case, inner packaging, sterilization method, shelf life and lead time are confirmed on the final quotation. Do not place a validated order from a family description alone.
| Capacity | Typical Workflow | Product Page |
|---|---|---|
| 20 µL | Micro-volume PCR, qPCR, NGS and reagent setup | Current selection |
| 200 µL | Routine molecular biology, plate work and general liquid handling | View 200 µL options |
| 1000 µL | Large-volume sample preparation, buffers and mixing | View 1000 µL options |
Choose capacity first, then specify filter, sterility, retention surface and packaging. The three capacities are not interchangeable.
Yes. State the required filter, sterility, retention surface and packaging when requesting a quote.
No. They are independently manufactured Puretest tips intended for compatibility with selected Rainin LTS-style pipettes.
No. Confirm the exact model, volume range and shaft type, then qualify samples before routine use.
Filtered supply is commonly paired with sterile packaging, but sterility must be confirmed for the quoted Puretest SKU.
They can be evaluated for qPCR setup when the required cleanliness, filter and sterility configuration is confirmed.
Send the pipette model, channel count, target volumes, liquids, filtered or non-filtered preference, sterility and cleanliness requirements, annual quantity and destination country. Contact Puretest for a compatibility sample, current drawing, documentation confirmation or commercial quotation.
Rainin®, LTS™ and LiteTouch® are trademarks of Mettler-Toledo Rainin, LLC. Puretest is an independent manufacturer and is not affiliated with or endorsed by Mettler-Toledo Rainin. Brand names are used only to describe compatibility; customers must qualify the exact product for their application.
General Inquiries
Hangzhou Puretest Biotech Co., Ltd. is an innovative company.
Tell us the product, specifications and quantity you need. We’ll reply by email with the next steps.
