The world's most popular design of manual pipette was moved to the new era. DISCOVERY Comfort single channel pipettes combine proven construction of pipette handle resulting in outstanding repeatability and high durability with new approach towards pipette ergonomics and safety.
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DISCOVERY Comfort Starter packs create an interesting opportunity for the users who are just starting to equip their laboratory, or who decided to switch to HTL pipetting system. The DISCOVERY Comfort Starter 4-Pack contains 4 variable volume pipettes in most popular and universal volumes (0.5-10 µl, 2-20 µl, 20-200 µl and 100-1,000 µl), a linear pipette stand for 4 pipettes, 3 racks with tips and accessories.
DISCOVERY Comfort pipettes combine the highest level of accuracy and precision with traditional design to make the pipetting experience comfortable and safe. The pipettes are available in single and multichannel version.
HTL pipettes are renowned for their outstanding accuracy and precision rates. What characterizes HTL's equipment is the fact that it not only performs great when it’s 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 HTL's QC Department and manufacturing know how gained by them within more than 35 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 HTL pipettes allow them to attain this goal :
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 component. The smoother the move of the piston, the more repeatable its shape, the more accurate aspiration of the pipette is.
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 HTL 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 precision of work is easily obtained even by less experienced pipette operators.
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.
The design of HTL pipettes bases on decades of experience and reflects HTL's deep understanding of end users needs and preferences. Within the years HTL representatives have paid hundreds of visits to all kinds of laboratories, on every continent in search for the most optimal characteristics of the manual liquid handling tools. This never ending research work allows HTL to find an ideal equilibrium between pipette weight, materials applied, forces necessary for smooth but precise pipetting as well as the pipette handle shape. Extensive pipetting is a hard physical work which in some extreme cases may cause Repetitive Strain Injuries (RSI). While crafting their pipettes they made sure that their properties give the user the sensation of comfortable work with the most popular pipettes on the market, but at the same time they minimize strain and potential risk of RSI.
The most important pro ergonomic features of HTL pipetting systems are :
The pipetting forces of all HTL pipettes belong to the lowest in the industry. HTL's research work of the last 3 years was aimed in particular at pipetting force reduction. The newest models of pipettes feature low tension springs as well as smoothly running plunger sealing system resulting in effortless pushbutton operation at both pipetting and blowout stages.
HTL pipettes are renowned for their convenience and the sensation of the “familiar feel”. While the pipette feels in the hand as the most popular pipettes on the market it offers wide finger support allowing for convenient hanging of the pipette on the index finger and relaxed grip. The weight of the HTL pipette gives the laboratory professional an optimal balance between low strain and secure pipette handling.
HTL pipettes are equipped with a number of systems aimed at reducing the force of tip ejection. The revolutionary system applied by HTL for reduction of the tip sealing and ejection force bases on the concept of retrievable shafts and cones. During the sealing of the tip on the pipette, the pipette is being pressed against the rack of the tips. When the pressing force applied to the pipette is sufficient for secure sealing the shaft starts to retrieve inside of the pipette body, preventing tip jamming. Thanks to this unique, patented system the tip is being sealed with the minimal force and the force necessary for tip ejection is respectively small. The system of retrievable shafts is also applied in all multichannel pipettes. The system of precise setting of the tip ejector stroke in other models of HTL pipettes allows ejecting the tip with minimal effort and only after the minimal movement of the thumb on the ejector pushbutton.