15
Finntip Filter tests
Acid test
• 35% and 5% trifluoroacetic acid (TFA) was used as test liquid.
• Finntip Filters prevented acids vapours of a 35% TFA solution of coming
through the filter.
• When pipetting a 5% solution of TFA using a standard tip, no vapour came into
the interior of the pipette.
DNA test
• DNA aerosols with sample concentrations of 20, 50 and 100
µ
g
µ
l
-1
were blown
onto the filters.
• Finntip Filters prevented DNA aerosol of these concentrations coming through
filter into the interior of the pipette.
The plastics of various Finntips
PE=Polyethylene
Autoclavable (121
°
C,20 min)
PP=polypropylene
Finntip Racks
Standard tips - Finntips
®
Finntip Filters
Tip
Filter
Finntip PDP
Piston
Tip
Temperatures greater than 121
°
C damage piston
Finntip Stepper
Piston
Tip
