We have a routine task of pipetting substance concentration series in triplicate on cell cultures under a laminar hood. To speed up the process, we use an electronic pipette in the repetitive pipetting mode and an electronic dispenser. The pipettes are several times a day wiped with 70% ethanol for decontamination, as they are moved to and from the hood. Up to date, we used the Eppendorf ones, but they fail after roughly a year of use. The failing parts are usually piston position sensor and pipette tip sensor on electronis dispenser.
Does anybody have an experience with the durability of different brands of electronic pipettes (Socorex Acura electro, Gilson Pipetman M, MT E4, maybe, others), especially under a laminar hood in repetitive pipetting mode?
Thank you in advance!