How to find the right Lab Pipette Tips AI guide
Written by an AI model from its trained knowledge.
What the AI looks for in Lab Pipette Tips
- Pipette fit system
- Buy tips listed as compatible with your exact pipette brand and series. Rainin LTS pipettes need LTS tips, while standard-cone pipettes take universal or brand-matched tips. A poor seal on the shaft is the main cause of inaccurate volumes and tips that drop off or leak.
- Volume range match
- The tip's nominal volume must cover your pipette's maximum volume, for example 10, 20, 200, 300 or 1000 µL classes. An undersized tip overfills into the shaft. A badly oversized tip may not seat on the cone at all.
- Purity certification
- For PCR, qPCR or cell work, the lot should be certified free of DNase, RNase, human DNA and pyrogens/endotoxin, and pre-sterilized if you need sterility. Uncertified tips can introduce contaminants that ruin sensitive assays.
- Packaging format
- Choose racked, sterile tips for aseptic or molecular work. Choose bulk bags with your own racking and autoclaving for routine non-sterile work. Packaging drives both cost per tip and contamination risk.
- Low-retention surface
- Use low-retention tips for viscous liquids, detergents, proteins and enzymes. Liquid that clings to the tip wall lowers the delivered volume and wastes reagent.
- Material quality
- Tips should be virgin polypropylene and labelled free of additives, slip agents and colorants where the assay is sensitive. Leachables from recycled or additive-laden plastic can interfere with assays.
Brands that matter
- Rainin (Mettler Toledo): The LTS tip system is required for Rainin LTS pipettes. Rainin also makes universal-fit tips.
- Eppendorf: Its epT.I.P.S. line is designed for Eppendorf pipettes and is widely used on other cones.
- Gilson: Makes tips matched to PIPETMAN pipettes, including filtered versions.
- Thermo Scientific: Its ART aerosol-barrier tips are a long-standing standard for molecular work.
- Corning / Axygen: A broad universal-fit range with low-retention and filtered options.
- Sartorius: Makes Optifit tips and SafetySpace filter tips, designed for Sartorius pipettes.
- Biotix: Universal-fit tips with filtered and low-retention variants.
What to avoid
- Tips that do not name the pipette brands or series they are tested to fit.
- Unbranded bulk tips with no lot certification, if you use them for PCR or cell culture.
- Universal tips on a Rainin LTS pipette, because they will not seat.
- Autoclaving tips that are already sold pre-sterilized and certified, since it can void the certification.
Questions
Will any 200 µL tip fit any 200 µL pipette?
No. Cone shapes differ between brands and series. 'Universal' means the tip fits many standard cones, not all of them, and it never fits Rainin LTS.
Do I need sterile tips if I autoclave my own?
Autoclaving sterilizes tips, but it does not remove DNA or nucleases. Molecular work needs tips that are certified nuclease-free and DNA-free.
Universal Pipette Tips
Universal tips follow the parent's rules: match the volume class, check that your pipette brand and series are listed as compatible, and test the seal before relying on volumes. They do not fit Rainin LTS pipettes.