SECTION 2
GETTING STARTED
2.4 Micropipettor Information
The micropipettor furnished with the Vapro osmometer uses a two-
step (aspirate/expel) mechanism that dispenses 10 microliters of liq-
uid for osmolality assay. This no-maintenance micropipettor works
with a wide range of biological solutions and laboratory reagents.
Disposable plastic tips eliminate carry-over error from sample to
sample. Use the provided micropipettor to assure uniform results
among different operators.
We do not recommend three-step pipetting (aspirate/expel/blowout)
for loading the osmometer. The blowout step tends to create bub-
bles in the specimen that can lead to thermocouple contamination.
Positive Displacement Pipettors
A positive-displacement pipetting device or alternative loading meth-
ods may be more suitable for extremely viscous fluids or complex
specimens.
The sample loading procedure in this manual presumes the use of
the Wescor micropipettor.
22
CAUTION!
Do not use positive displacement pipetting devices for routine operation.
Refer to Appendix D for additional information regarding special applica-
tions.
To Next Page
Loading...