10 points to pay attention to when using pipettes

10 points to pay attention to when using pipettes

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1) When sucking liquid, be sure to loosen your thumb slowly and steadily, and never loosen it suddenly, so as to prevent the solution from being sucked in too quickly and rushing into the liquid extractor to corrode the plunger and cause air leakage.[ Covid Filter Tip,30ul Filter Tips,100ul Filter Tip,20ul Filter Tips,Filter Tips 10ul ]
2) In order to obtain higher accuracy, the tip needs to draw the sample solution in advance, and then formally pipette, because when the serum protein solution or organic solvent is drawn, a layer of “liquid film” will remain on the inner wall of the tip, which will cause the amount of liquid to be discharged. Too small and produce errors.
3) Liquids with high concentration and viscosity will cause errors. In order to eliminate the error, the compensation amount can be determined by experiment. The compensation amount can be set by changing the reading of the reading window with the adjustment knob.[ Covid Filter Tip,30ul Filter Tips,100ul Filter Tip,20ul Filter Tips,Filter Tips 10ul ]
4) An analytical balance can be used to measure the weight of the pure water taken and calculate it to calibrate the liquid extractor. 1mL of distilled water weighs 0.9982g at 20°C.
5) The method of tightening the pipette by repeatedly hitting the tip is very undesirable. Long-term operation will loosen the internal parts and damage the pipette.
6) Do not pipette when the pipette is not equipped with a tip.[ Covid Filter Tip,30ul Filter Tips,100ul Filter Tip,20ul Filter Tips,Filter Tips 10ul ]
7) When setting the range, please pay attention to rotate to the required range, the number is clearly in the display window. Do not turn the button out of the range if the set range is within the range of the pipette, otherwise it will jam the mechanical device and damage the pipette.
8) The pipette is strictly prohibited to absorb highly volatile, highly corrosive liquids (such as concentrated acid, concentrated alkali, organic matter, etc.).
9) It is strictly forbidden to use a pipette to pipette and mix the liquid.
10) Do not use a large-range pipette to pipette small volumes of liquid, so as not to affect accuracy. At the same time, if you need to pipette a larger amount of liquid outside the measuring range, please use a pipette.[ Covid Filter Tip,30ul Filter Tips,100ul Filter Tip,20ul Filter Tips,Filter Tips 10ul ]