Pipette placement: Pipettes that hold liquid should not be placed flat. The liquid in the tip can easily contaminate the inside of the gun and may cause the gun to rust.
The pipette should be adjusted to maximum after each experiment, allowing the spring to return to the prototype to extend the life of the pipette
In order to obtain higher precision, the sample solution needs to be sucked once before the sample is taken, and then the liquid is officially pipetted. Because the serum protein solution or the organic solvent is taken up, a “liquid film” remains on the inner wall of the tip, resulting in a small amount of liquid discharge. And there is an error.
Liquids with large concentrations and viscosities produce errors. The amount of compensation to eliminate the error can be determined experimentally. The amount of compensation can be set by changing the reading of the reading window with the adjustment knob.
Pipettes are strictly prohibited to absorb liquids with strong volatility and strong corrosivity
Do not use a large-scale pipette to remove a small volume of liquid to avoid affecting accuracy. Also, if you need to remove a larger amount of liquid outside the range, use a pipette
Tips for using pipettes:
1. Maintain the correct posture when pipetting; do not hold the pipette at all times, use a pipette with a finger hook to help relieve hand fatigue; if possible, change hands frequently.
2. Regularly check the sealing condition of the pipette. Once the seal is aged or leaking, the seal should be replaced in time.
3. Perform 1-2 inspections of the pipette each year (depending on the frequency of use).
4. Most pipettes, before use and after a period of use, the piston should be coated with a layer of lubricant to maintain the seal;