The method and correct placement of electric pipette for pipetting

The electric pipette is used to transfer a small amount of liquid, including 20-200ul, 200-1000ul, 100-1000ul, and 1-10ml and other specifications.
It can greatly improve your work efficiency during the experiment, which is both accurate and fast.
, really a small laboratory equipment
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But there are many precautions in its use, you all know? The editor has sorted it out, everyone can take a seat and study hard
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Before pipetting, ensure that the pipette, tip and liquid are at the same temperature
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When aspirating the liquid, keep the pipette upright and insert the pipette tip 2-3 mm below the liquid surface
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Wet the tip by aspirating the liquid a few times before aspirating (especially if you are picking up liquids that are viscous or have a density different from water)
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There are two pipetting methods available at this time
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One is forward pipetting
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Press the button with your thumb to a stop, then slowly release the button to return to the origin
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Then press the button to the first stop to discharge the liquid, stop for a while and continue to press the button to the second stop to blow out the remaining liquid
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Then release the button
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　　　　The second is the reverse pipetting method
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This method is generally used to transfer high-viscosity liquids, biologically active liquids, easily foaming liquids or trace amounts of liquids
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　　　　First press the button to the second stop, then slowly release the button to the origin
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Then press the button to a stop point to discharge the liquid with the set range, continue to hold the button at a stop point (never press it down again), remove the pipette tip with residual liquid, and discard it
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　　　　After use, it can be hung upright on the pipette holder, but be careful not to drop it
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When there is liquid in the pipette tip, do not place the electric pipette horizontally or upside down to prevent the liquid from flowing back and corroding the piston spring
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