Manual Liquid Handling - John Morris Scientific

DIAMOND ® Tips
High Quality Tips for High Quality Pipettes
Precision (µl)
Superior Accuracy and Precision
guaranteed
“The maximum permissible errors always apply to the total
system of piston pipette and tip. When using pipette tips not
delivered by the pipette supplier, the supplier’s declaration
or certificate of conformity does not apply” (ISO 8655-2)*.
Diamond Tip Geometry Delivers
Maximum Accuracy
Diamond tips guarantee that Gilson pipettes meet
our specified tolerances and deliver consistent results
over time.
Evaluation of the influence of different tip brands
of comparable quality (A, B,....I) on the accuracy and
precision of a Pipetman® P10 at 1µl.
0,018
0,016
0,014
0,012
0,01
0,008
0,006
0,004
0,002
Tip brands: DL-10 A B C D E F G H I
Gilson specifications
0
-0,125 -0,1 -0,075 -0,05 -0,025 0 0,025
Accuracy (µl)
Results obtained in the Gilson ISO 17025 Cofrac accredited
laboratory from 10 measurements of 1μL of water at 21°C
using a Pipetman P10.
Best Match between Pipette and Tips
Reduces the Strain to Fit & Eject Tips
With Diamond tips no need to jam them on “extra
tight” – use of excessive force that causes muscular stress
and fatigue to the arm and shoulder is greatly reduced. As a
result, thumb force to eject tips is minimal.
Pure Polypropylene Ensures no
Contamination and Complete Dispensing
Diamond tips are made from the highest grade virgin
polypropylene to prevent contamination of your
experiments. This polypropylene has high hydrophobic
properties to ensure the lowest possible retention no matter
what liquid is pipetted.
Prevention
of Contamination
Often overlooked as a source of sample contamination, the
pipette tip comes into direct contact with the sample and
may contaminate the solution. Designed to meet the most
stringent demands in various fields and applications such as
PCR, molecular biology or cell technology.
A Filter Tip You Can Trust
Equipped with a high density polypropylene filter,
Diamond tips contain no sealing additive which can be
released in your sample.
Filter porosity has been scientifically determined
to constitute an effective barrier against
aerosols generated by pipetting tasks.
Proven high efficiency.
Adding Comfort while Fitting
and Ejecting Tips
Loose tip fitting is a major cause of bad performance.
Specifically designed for the Gilson pipettes, the
diameter of the tip-collar and tip-holder of the Gilson
Diamond tips are calculated to fit perfectly.
*ISO 8655 is an international standard for “piston operated apparatus”. ISO 8655
defines, among other things, terms and definitions regarding piston operated
pipettes and their testing, testing procedure and maximum permissible errors.
Sterile and non
sterile versions are
autoclavable to
ensure perfect
sterility once the rack
has been opened.
For more details
on filter tips, see
the application
notes insert
We performed an evaluation of different filter
tip brands over a complete aerosol size range
of 0.05, 0.1, 0.3, 0.5 and 1μm and found that
these particles behave as the theory of filtration
would predict. By further comparison of the
results, we also concluded that although these
filter tips are considered of the highest quality
available on the market, they behave in a
different manner. For example, for 1 μm
particle, filter B has an efficiency of 81% as
opposed to 98% for Gilson Diamond tip.
24
Manual Liquid Handling Catalog 2007 / January - More information available at www.gilson.com