50 µL robotic pipette tips compatible with selected Hamilton automated liquid-handling workflows, offered as conductive black and clear/non-conductive polypropylene variants.
Puretest 50 µL robotic pipette tips are designed for low-volume transfers that benefit from controlled aspiration, low reagent consumption and reliable multi-channel tip pickup. This consolidated family page brings the conductive black and clear/non-conductive variants together so automation engineers, laboratory managers and purchasing teams can compare functional differences without searching through duplicate product listings.
The black tip uses conductive polypropylene and may support capacitive liquid-level detection when the installed Hamilton platform and method are configured for it. The clear/natural tip is non-conductive and is useful when transparent visual inspection is preferred or conductive sensing is not required. The two variants must not be treated as functionally identical in a method.
Automated pipetting performance depends on the complete setup: platform, head or channel, rack and carrier, tip definition, liquid class, source vessel, destination labware and liquid properties. Puretest therefore recommends evaluating a sample with the intended method before routine or validated use.
The tip body is designed to support repeatable robotic pickup, sealing, liquid aspiration, dispensing and ejection. Functional qualification should consider the entire tip—not only nominal volume. Cone interface consistency influences sealing; shaft geometry affects access to plates and vessels; the distal section influences residual liquid behavior; and rack registration determines reliable multi-channel pickup.
Conductive material provides an electrical path required by compatible capacitive sensing workflows. The clear material supports direct visual observation but is non-conductive. Neither material selection replaces method development. The appropriate liquid class, immersion depth and detection strategy must be validated for the actual application.
| Variant | Material / Appearance | Detection Behavior | When to Select |
|---|---|---|---|
| Conductive | Conductive polypropylene / black | Can support capacitive liquid-level detection when enabled and correctly configured on a compatible platform | Methods that use conductive-tip sensing or require a black conductive consumable |
| Clear / natural | Non-conductive polypropylene / transparent | Does not provide conductive capacitive liquid-level detection | Visual method development and workflows that do not require conductive sensing |
Selection rule: order the conductive variant when the approved method relies on capacitive liquid-level detection. Select the clear variant when the method uses another detection strategy or does not require conductive sensing. If uncertain, provide the existing method or original tip specification with the RFQ.
| Specification | Family Profile | What the Buyer Should Confirm |
|---|---|---|
| Nominal capacity | 50 µL | Use the instrument’s validated liquid class and do not treat nominal capacity as a universal minimum-to-maximum performance promise. |
| Material choices | Conductive black or clear/natural polypropylene | Select according to liquid-level-detection and visual-inspection requirements |
| Automation format | Robotic pipette tip supplied in racks | Confirm head/channel, cone fit, rack geometry and deck carrier |
| Intended platform use | Compatible with selected Hamilton automated liquid-handling workflows | Provide exact platform and head/channel configuration for qualification |
| Filter option | Filtered or non-filtered configurations may be available | Availability is SKU-dependent; state aerosol-barrier requirements in the RFQ |
| Sterility | Sterile and non-sterile configurations may be available | Confirm selected SKU, irradiation/wrapping and required lot documentation |
| Cleanliness documentation | Available for qualified configurations | List required RNase/DNase, pyrogen/endotoxin or other declarations before ordering |
| Rack and wrapping | Racked supply; individual wrapping and case pack depend on configuration | Confirm rack footprint, lid, label, barcode and case quantity |
| Color | Black conductive or clear/natural | Color indicates material/detection function; it is not a decorative option |
| Evaluation | Compatibility samples available | Run mechanical and liquid-handling qualification before routine use |
This table defines the family and the questions that must be confirmed; it does not imply that every filter, sterility, rack and document combination is available under one SKU. Puretest will identify the exact configuration in the quotation.
These tips are positioned for selected Hamilton automated liquid-handling workflows, including configurations within the Microlab VANTAGE, Microlab STAR, Microlab NIMBUS and Microlab Prep families where the relevant head/channel, carrier and method accept this tip format. Platform name alone is not sufficient to guarantee compatibility.
| Qualification Item | Why It Matters | Recommended Check |
|---|---|---|
| Platform and pipetting head | Hamilton platforms may use different channel/head and tip definitions | Provide platform model, head/channel and software method details |
| Tip pickup and sealing | Reliable sealing affects accuracy, pressure behavior and retention | Check pickup, vertical alignment, seal, retention and ejection across all active channels |
| Rack / deck carrier | Rack height and registration affect pickup | Confirm footprint, carrier, lid clearance and pickup coordinates |
| Liquid class | Viscosity, volatility, surface tension and foaming change performance | Optimize speed, delay, pre-wet, immersion depth, air gaps and dispense behavior |
| Detection strategy | Conductive and clear tips do not provide the same sensing behavior | Confirm whether capacitive sensing is required and validate the selected method |
| Critical volumes | Nominal capacity alone does not define precision at every volume | Test the minimum, routine and maximum critical transfer volumes |
For second-source qualification, send the platform model, installed pipetting head or channel, current tip reference or drawing if available, target volumes, liquid types, filter and sterility needs, rack format and annual demand. This avoids recommending a tip based only on a broad instrument name.
The 50 µL family is suitable for method development and qualified routine use in applications such as:
At lower volumes, aspiration depth, pre-wetting, liquid surface behavior and dispense position can materially affect precision. Qualification should include the lowest critical transfer volume used by the method.
Filtered, non-filtered, sterile and non-sterile configurations may be offered within the broader family, but availability must be confirmed for the exact material and rack combination. An aerosol-barrier filter may be appropriate for contamination-sensitive workflows, while a non-filtered tip may be preferred where maximum usable internal volume or another method requirement takes priority.
Buyers can request the current specification, material information, irradiation or sterility statement, lot traceability, certificate of analysis and relevant RNase/DNase or pyrogen/endotoxin documentation for qualified configurations. Claims and limits must be checked against the selected SKU and current lot documents rather than copied from another family.
| Supply Configuration | Typical Purpose | Confirmation Needed |
|---|---|---|
| Conductive racked tips | Methods using compatible capacitive sensing | Platform/head, filter state, sterility, rack and case pack |
| Clear racked tips | Non-conductive workflows and visual setup | Platform/head, filter state, sterility, rack and case pack |
| Sterile wrapped configuration | Contamination-controlled workflows | Sterile SKU, irradiation/wrapping state and current lot documents |
| OEM / private label | Distributor or branded supply programs | MOQ, forecast, artwork, label, carton mark and lead time |
When requesting a quotation, specify whether racks must be individually wrapped, whether a particular deck carrier or footprint is required, and whether barcode, label or private-carton requirements apply. Case quantity and lead time may differ by material, filter, sterile state and packaging program.
Puretest supports laboratories, automation integrators, distributors and private-label buyers serving North America, Europe and other international markets. Commercial planning can include evaluation samples, production-lot supply, annual forecasts, safety stock, carton configuration, labeling, lot information and shipping documents.
For a useful quotation, include delivery country, forecast or annual quantity, preferred Incoterm if known, required documentation, packaging format and any target landed-cost or validation schedule.
Choose the smallest tip family that comfortably covers the validated transfer range. A protocol spanning substantially different volume ranges may benefit from more than one tip size rather than forcing a single family to perform across every transfer.
They share the 50 µL family and intended mechanical application, but their sensing behavior differs. Conductive black tips may support capacitive liquid-level detection on a correctly configured compatible platform; clear polypropylene tips are non-conductive. Any change between them should be qualified.
No. They are Puretest-manufactured robotic pipette tips designed for compatibility with selected Hamilton automated liquid-handling workflows. Puretest is not affiliated with or endorsed by Hamilton.
They are positioned for selected configurations within Microlab VANTAGE, STAR, NIMBUS and Prep workflows. Exact suitability depends on the installed head/channel, carrier, rack, method and tip definition. Request a sample using the precise platform configuration.
Clear/natural polypropylene is non-conductive and should not be represented as providing conductive capacitive sensing. Use the method’s validated detection approach or select the conductive variant.
Filter availability is configuration-dependent. State whether an aerosol barrier is required and ask Puretest to confirm the applicable SKU, usable volume and supporting specification.
Sterile and documented-cleanliness configurations may be available. Confirm the exact tip material, filter state, rack and lot documentation required before ordering.
Yes. Sample evaluation is recommended to verify rack fit, pickup, sealing, ejection, sensing behavior and liquid-handling performance with the intended method.
OEM and private-label programs are available subject to configuration, minimum order quantity, forecast, artwork and lead-time review.
Send your Hamilton platform model, installed head/channel, 50 µL requirement, conductive or clear preference, filter state, sterility, rack format, required documents, expected annual quantity and delivery country. Puretest will confirm the closest configuration and sample plan.
Contact Puretest for a sample, technical document or quotation
Trademark notice: Hamilton, Microlab VANTAGE, Microlab STAR, Microlab NIMBUS and Microlab Prep are trademarks or registered trademarks of their respective owner. Puretest is not affiliated with or endorsed by Hamilton. Compatibility references identify intended instrument use only.
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