daj at nhm.ic.ac.uk
Mon Jul 19 11:06:48 EST 1993
On 16 Jul 93 20:55:49 GMT,
Patricia Foster writes:
>Sterilizing Pipette tips, Summary
>dealing with the non-autoclavable Combitips for Eppendorf repeater
For what it is worth, we have just invested in a Socorex repeater pipette.
The "combitips" for this are branded "ECOSTEP". Having seen the
previous postings on the eppendorf combitips, I got worried and had a go at
autoclaving some of ours (ready assembled @121C for 15mins). I then
checked the callibration by repeat pipetting distilled water on a balance.
Results: no cracking of tips, error <0.7% (frequently <0.2%) over volume
range of 10-500ul per dispense, 10-100 dispenses (honest, I was
Maybe "ecostep" tips fit the eppendorf pipettor (the barrel has a square
flange of side approx 20 mm, the plunger has a round flange of dia approx
David A. Johnston
Dept of Zoology, The Natural History Museum, Cromwell Road,
South Kensington, London SW7 5DB.
(tel 071 9389297, fax 071 9388754, email daj at nhm.ic.ac.uk)
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