How to Choose the Right Range of Pipettes?

Hawach often receives such inquiries from customers, “Help me recommend pipettes, which can be used in all ranges, four sets.” At the request of the customer, we will generally recommend 0.5 to 10uL, 5-50uL, 10-100uL, 100-1000uL pipettes for the four-range range. On the surface, the customer bought a full scale that covered almost all the micropipetting. It seems that everything is perfect, but it is not the case! After many years of pipette after-sales work, feedback on customer issues received, such as inaccurate pipetting, not easy to use, is often derived from the initial suit selection.

Let’s take one of the most common examples: the most common feedback from customers in pipetting is to use a 10uL pipettes to transfer liquids up to 1uL. Theoretically, a pipette with a range of 0.5-10 uL is not problematic when operating in a liquid within 0.5-1 uL. Why is it that during this range, customers often have the most feedback. Below 1uL is an ultra-micro liquid operation. The amount of liquid is almost invisible to the naked eye. The basic work requirements for liquid handling are very high, such as washing, inserting liquid depth and other technical details. In addition, the quality of the tip also has a great influence on this micro-operation. Some tips with poor quality have residual plastic burrs at the tip end of the tip. This poor quality tip has a fatal effect on micropipetting. In the case of using a normal-quality tip, the mass operator chooses to use pipettes of 0.1-2uL range, and the liquid transfer operation below 1uL is significantly better than the 0.5-10uL range pipette.