PIPETTE FAMILIES WHAT ARE MANUAL AIR-DISPLACEMENT PIPETTES? Air-displacement pipettes are very accurate for standard pipetting applications. The piston, integrated in the lower part of the pipette, moves the liquid under the action of an air cushion (called dead volume) between the pipette and the liquid sample. It is recommended to use an air-displacement pipette with aqueous and non-viscous samples. Temperature and atmospheric pressure, as well as the specific weight and viscosity of the solution, can affect the performance of air-displacement pipettes. AIR- DISPLACEMENT Air cushion Disposable tip POSITIVE- DISPLACEMENT Disposable Disposable capillary capillary Disposable Disposable piston piston Piston Piston seal seal WHAT ARE ELECTRONIC AIR-DISPLACEMENT PIPETTES? Electronic pipettes work like manual air-displacement pipettes under the action of an air cushion. The manual movement of the piston is carried out by an electronic motor, requiring virtually zero pipetting forces. They decrease the risk of RSI-type injuries caused by repetitive pipetting and improve comfort as well as reproducibility at the bench. WHAT ARE POSITIVE-DISPLACEMENT PIPETTES? Positive-displacement technology is ideal when working with infectious, viscous, foaming, hot, cold, or volatile liquids because the disposable piston within the capillary piston (CP) tip is in direct contact with the sample. The CP technology thus removes any air cushion inside the pipette and ensures the volume accuracy is not affected by the fluid’s properties. This also helps prevent contamination and protects both the user and the pipette. THE RIGHT CHOICE FOR YOUR LIQUID HANDLING Liquid Types Applications Your Gilson Solution Associated Gilson Consumables Aqueous (ex. water, sucrose, Tris, buffer with a pH of 7) Biology Biochemistry Clinical assays and immunoassays Cell culture Analytical chemistry PIPETMAN® Classic PIPETMAN® G PIPETMAN® L PIPETMAN® M PIPETMAN® M Connected PIPETMAN® DIAMOND Tips Viscous (ex. glycerol, surfactants, oil) Volatile (ex. ethanol, hexane, formaldehyde) Hot or cold Foaming Contaminated or toxic (ex. blood, infectious bacteria or viruses, hazardous radioactive isotopes) Molecular Biology Petrochemistry Point of Care Diagnostic Pharmaceutical Cosmetic Environment Food Quality Control MICROMAN® E DISTRIMAN® Capillary Pistons DISTRITIPS® Corrosive (ex. hydrochloric or sulfuric acid) The performances of PIPETMAN are optimal with PIPETMAN DIAMOND Tips. These products have been developed as a complete pipetting system. 12 LIQUID HANDLING
