Accuracy
HTL Pipettes are renowned for their outstanding accuracy
and precision rates. What characterizes our equipment is the
fact that it not only performs great when its brand new, but
it also maintains its superbly reproducible performance
after years of usage*. This important advantage is the result
of both stringent
quality control
procedures applied by our QC Department and
manufacturing know how gained by us within more than 20
years of pipette manufacturing. From the very initial stages
of the designing process, HTL pipettes are crafted to meet
the requirement of long lasting reproducibility.
The following features of our pipettes allow us to attain
this goal:
* certain maintenance rules, described in pipette manual
should be obeyed to ensure its best, long lasting
performance
Ultra smooth pistons
– the properties of raw materials applied for the
construction of HTL pistons combined with the unique
technology of piston polishing result in extraordinary
smoothness of this vital compons low as possible. The
smoother the move of the piston, the more repeatable its
shape, the more accurate the aspiration of the pipette.
Balanced operation forces
– in order to ensure the repeatability of the measurement
it is essential to keep the right proportion between the
pipetting force, the blowout stop and the blowout force. On
one hand it is essential to keep the operation forces at the
lowest possible rate, on the other hoverer it is crucial to
let the user feel the right moment when he should stop
pressing the pushbutton down, before blowout. The tension of
the pipetting and blowout springs applied in newest HTL
pipettes is the result of decades of experience. Careful
selection of the spring material and their shape allowed us
to combine these two necessities in our LAB MATE+, MULTI MATE+, CLINIPET+ and DISCOVERY+ pipettes. The new construction of
the plunger assays applied in above pipettes allows for
pipetting with unnoticeable effort, but to feel clear stop
between pipetting and blowout at the same time. Thanks to
this design the precission of work is easily obtained even
by less experienced pipette operators.
Low thermal conductivity
– extensive work with some pipettes may result in warming
them up from the warmth the hand of the operator. The
increase of pipette temperature could cause an accuracy
error due to expansion of the air drawing the liquid into
the tip. Ultimately the warmer the air, the more expanded
the air, the less liquid is aspirated and the larger the
error.
HTL pipettes resist this negative factor due to the low
thermal conductivity of their handles. The material of our
pipette components coming in touch with operators’ palms do
not worm up as fast as the plastic applied by most of other
pipette manufacturers.
 Unique
multichannel manifolds
In the newest design of HTL multichannel pipette, the
DISCOVERY+ Multichannel, our engineers made sure that the
fact of possessing 8 or 12 shafts does not affect the
reproducibility of the pipette. The revolutionary solutions
applied in DISCOVERY+ Multichannels, ensuring identical
aspiration in all multichannel shafts are the alignment of
the pistons and the retrievable shaft system.
The alignement system guarantees that the plungers in all
shafts move with the same paste regardless of the operators
technique, while the retrievable shafts ensure that all tips
are sealed securely without the risk of poor air tightness
on the middle shafts.
Unique, patented
multichannel manifold >>
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