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Pipette Selection Guide
1. Product performance, that is, the accuracy and repeatability of pipettes, for most users, it is difficult and unnecessary to check product performance before purchasing. Therefore, it is mainly based on the technical data provided by the manufacturer. However, here are two points to make clear: first, do n’t easily believe the seller ’s verbal promise, you must check the written materials provided by the manufacturer; second, the brands that have a greater impact on the global pipette market, such as the US Labnet SOCOREX, EPPENDORF and GILSON, etc., provide more reliable technical data.
2. The reliability and durability of the product depends mainly on the material used for the pipette. For the housing, there should be higher impact resistance, corrosion resistance and lower thermal conductivity (such as PVDF material); for the piston, there are mainly three materials on the market at present: stainless steel, ceramic and plastic. Stainless steel has good mechanical properties and long life, but it is not suitable for pipetting of strong acids and alkalis; ceramics have high corrosion resistance, but poor mechanical properties. Of course, high-quality materials often mean higher prices, so it is necessary to comprehensively consider the factors of purchase price and life.
3. The ergonomic design of the product can mainly consider the following points:
First, the short moving distance of the thumb to complete a pipetting cycle means higher comfort;
Second, the loading and unloading of the suction head is also as easy as possible;
Third, compare the force of the thumb required by a pipette of the same range to complete a liquid discharge (be sure to press it all the way down), which is the key to comfort. The less force, the less risk of finger damage caused by long-term use;
Fourth, the weight of the pipette is moderate, too heavy will increase the burden on the hand, but too light also often means that the material may be unsatisfactory;
Fifth, other auxiliary designs, such as the matte design of the shell and the design of the finger hook, help to further improve comfort. In terms of ergonomics, SOCOREX is in a leading position in the global pipette market, and has perfect performance in the above points.
Sixth, the newly-developed laboratory instrument, the new force army beyonlab group's innopette pipette, strictly according to ergonomics, based on the hand data of Europe, America and Asia, re-made a pipette suitable for different regions, and more concerned about the experiment operator further.