Back to Pipette Maximum Volume

Why do the pipettes need to be adjusted back to the maximum volume after use? Changing it to pipette maximum volume after use is a default operation in Chinese laboratories. Everyone is warned by the teacher that not doing this will affect the service life of the pipette, but in many other countries or regions, there is no such statement. So what is it, let’s take a look at some common sayings.

Proponents

• There are quite a few people who have manually disassembled the pipette in search of answers, and they feel that it makes sense to return to the maximum volume. Because the spring in the manual pipette affects the accuracy, if it is not adjusted back to the maximum range, the spring will always be in a compressed state, and it will deform over time and lose its ability to rebound. There may be cases where it cannot be rebounded when pressed or the rebound is not smooth enough. At this time, the pipetting accuracy is very affected.
• Some people think that since the pipette is placed vertically after use if there is residual liquid in the tube caused by improper operation in the case of the maximum range of the pipette, the pressure will be less when the spring is relaxed, and the pressure will be relatively small. Easy to flow out.

Opponents

• Others believe that setting back to the pipette maximum volume range is not necessary, and there is no research showing that not setting back to the maximum range will cause errors. They believe that it is more important to perform regular calibration tests on the pipette than to return to the maximum range. If the error is too large, it can be directly returned to the factory for repair. So I think it is not a very necessary operation to return to the maximum range. Others believe that fewer adjustments are needed to ensure the longevity of the pipette.

Others of Turning to Pipette Maximum Volume

• Finally, there are those who think it will be more convenient to go back to the maximum range. It is a very good habit to restore the experimental bench to the initial state after the experiment is completed. Many instruments must be reset to zero after use. There may be a lot of laboratory pipettes. Adjusting back to the pipette maximum volume can tell which ones are not in use, as to avoid wrong or wrong calibration in new experimental operations. And strictly abiding by the experimental operation rules handed down in the laboratory, it seems to be an unnecessary trivial matter, but sometimes it can avoid many things that may cause errors in the experimental results.

After reading the above, which view will you agree with? We still support adjusting back to the pipette maximum volume after use to extend the life of the pipette. If you need to replace or buy a pipette, Hawach’s electronic pipettes, single-channel adjustable volume, and multi-channel adjustable volume pipettes are all very good choices!