Gilson Pipetman Fixed - Pre-Rinsing; Pipetman Diamond Tips

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5  PRERINSING
Some liquids (e.g. protein-containing solutions and
organic solvents) can leave a lm of liquid on the
insidethewallofthetip;pre-rinsethetiptominimize
any errors that may be related to this phenomenon.
Pre-rinsing consists of aspirating the rst volume
of liquid and then dispensing it back into the same
vessel (or to waste). Subsequent volumes that you
pipette will have levels of accuracy and precision
within specications.
This pre-rinsing operation should be repeated when
a new tip is used.
6  PIPETMAN DIAMOND TIPS
PIPETMAN DIAMOND Tips are made to the highest
specications, strict quality control is maintained
throughout the manufacturing process. These tips
are used to calibrate PIPETMAN Fixed, therefore
for optimum performance we recommend using
PIPETMAN DIAMOND Tips with your PIPETMAN Fixed.
PIPETMAN DIAMOND Tips have the Gilson logo
engraved on their collar, ensuring that you have a
genuine Gilson product. To ensure accuracy and
precision, Gilson's Quality Assurance System focuses
on the following critical parameters.
• PIPETMAN DIAMOND Tips are made from pure
polypropylene (virgin, metal-free, to avoid the
possibility of contamination). They are available
sterilizedandwithlters.
• Optimized shape (revised collar for optimum
sealing, thin walls, and ne point), making them
easier to mount, more exible, with no vortexing,
and improved precision.
• PIPETMAN DIAMOND Tips are free from even
microscopic defects, especially at the orice. All
surfaces are smooth and hydrophobic, thereby
avoiding the excessive retention of liquids that
causes poor accuracy and a lack of precision.