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RegisterVolumetric flasks [Bioanalytics]
Dear Ionsource,
I would agree with Helmut. Pipetting 10.3 ml of solvent involves multiple successive pipetting, and given the precision and accuracy of the pipette used you won't be sure to really get 10.3 ml in the end. In addition if you are using methanol as solvent (which is rather frequent), you may loose a drop of solvent if you don't pre-wet the cone (particularly with 5 ml pipettes).
Regards
Ohlbe
❝ Use volumetric flasks in the future
I would agree with Helmut. Pipetting 10.3 ml of solvent involves multiple successive pipetting, and given the precision and accuracy of the pipette used you won't be sure to really get 10.3 ml in the end. In addition if you are using methanol as solvent (which is rather frequent), you may loose a drop of solvent if you don't pre-wet the cone (particularly with 5 ml pipettes).
Regards
Ohlbe
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Regards
Ohlbe
Regards
Ohlbe
Complete thread:
- Correct method for preparation of stock solution Ionsource 2013-03-11 17:25
![[Mix]](https://static.bebac.at/img/mix.png "open in Mix view")
- Volumetric flasks Helmut 2013-03-11 17:55
- Volumetric flasksOhlbe 2013-03-11 18:45
- Volumetric flasks Ionsource 2013-03-15 18:10
- Volumetric flasksOhlbe 2013-03-11 18:45
- Correct method for preparation of stock solution cakhatri 2013-03-12 18:35
- A vote for both approaches ElMaestro 2013-03-16 19:58
- Volumetric flasks Helmut 2013-03-11 17:55
Ing. Helmut Schütz