Instruction Manual | 9
7. Corning® Pipet Tips
Corning DeckWorks pipet tips are made from high
performance polypropylene and their quality ensures the
precision and accuracy associated with the pipettor. Strict
control is maintained throughout the manufacturing
process to ensure the highest quality.
The accuracy and precision figures for the pipettors are
only guaranteed when Corning pipet tips are used. The
use of inferior quality tips will seriously degrade the
performance of the pipettor.
Refer to Pages 3 and 4 for information on proper pipet tips
sizes, accuracy, and precision values.
8. Recommendations
Observing the following recommendations will ensure
maximum possible accuracy and precision of liquid sampling.
◗
Make sure to operate the pipettor slowly and smoothly.
◗
The depth of immersion in the sample liquid should be
the minimum necessary and should remain constant
during aspiration.
◗
The pipettor should be held in a vertical position.
◗
Change the pipet tip when volume setting is changed or
when a different liquid is to be aspirated.
◗
Change the pipet tip if a droplet remains on the end of
the tip from the previous pipetting operation.
◗
Each new pipet tip should be pre-rinsed with the liquid
to be pipetted.
◗
Liquid should never enter the pipettor shaft. To prevent this:
- Press and release the pushbutton slowly and smoothly.
- Never turn the pipettor upside down.
- Never lay the pipettor on its side when there is liquid
in the tip.
◗
Never force the volume setting beyond its recommended
limits.
◗
When pipetting liquids with temperatures different
from the ambient temperature, it is recommended to
pre-rinse the tip several times before use.
◗
Do not pipette liquids with temperatures above 70°C.
◗
When pipetting acids or corrosive solutions which emit
vapors, it is recommended to disassemble the shaft
and rinse the piston and seal with distilled water after
finishing the pipetting operation.
