FAQs

All filtered pipette tips (Racks and Refills) cannot be autoclaved.
Non-filtered Excella pipette tips and Racks can be autoclaved for 15 min at 121 °C and 1 bar. Higher temperatures or longer autoclaving cycles may cause damage to the Racks. Remove the shrink-wrap before autoclaving, insert refills into racks and close them before autoclaving. Let the tips dry fully at room temperature before usage. Racks can be autoclaved at least 100 times without deformation.

The shelf life of all Excella pipette tip is at least 5 years when stored correctly. The expiry date of each product is also laser printed on each individual pipette tip tray.

The Excella pipette tip Racks and tips are made from pure polypropylene.

The Excella pipette tips are manufactured from pure polypropylene and thus show a high resistance to the common liquids used in labs.

In order to test this, one 10 µL tip was incubated for 24 h in the stated chemical and showed no changes in colour or size. The Excella tips can thusly be rated as resistant against the following chemicals:
• Acetic acid, 12 % and 96 %
• Acetone, ≥ 99.8 %
• Acetonitrile ≥ 99.9 %
• Ammonia solution, 2 % and 25 %
• Caustic soda, 4 %
• Chloroform
• CsCl, saturated
• Dichlormethane
• Diethyl ether
• DMSO 10 %, 50 % and 100 %
• EDTA, pH at pH 8, 0.5 M
• Ethanol (denat.), 96 %
• Ethylacetate ≥ 99.5 %
• Formaldehyde, 37 %
• Glutaraldehyde, 25 %,
• Glycerine, 50 %
• Guanidine isothiocyanate, 4 M
• Guanidinhydrochloride, 6 M
• Hydrochloric acid, 3.6 % and 32 %
• Isoamylacohol, 98 %
• Isopropanol, 99.8 %
• Methanol
• Mineral oil, 6 %
• Nitric acid, 6.3 %
• Petroleum ether
• Phenol, H2O saturated
• SDS, 1%
• Sodium acetate at pH 5.2, 2 M
• Sodium hydroxide solution, 20 %
• Sulphuric acid, 16 % and 96 %
• Toluene
• Trichloroacetic acid, 10 % and 40 %
• Trifluoroacetic acid, 10 %
• TRIS at pH 7.5, 1 M
• Triton Y-100, 1 %
• Tween 20, 1 %
• Water

They should be stored between +5 and +40 °C in dry conditions and should be protected from sunlight and UV-light.

When changing the tip type, the pipettes must be recalibrated with the Excella tips to ensure accurate and precise pipetting results within error tolerances of the pipette and ISO8655:2022

The filter inside the pipette tips is made of high-density polyethylene (HDPE) material, free from additives.

The Excella pipette tips are designed with a universal cone to fit onto most pipettes that have a universal pipette cone.