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  2. Air displacement pipette - Wikipedia

    en.wikipedia.org/wiki/Air_displacement_pipette

    The majority of tips have a color code for easy spotting like natural (colorless) for low volumes (0.110 μL), yellow (10–100 μL), or blue (100–1,000 μL). The corresponding pipette has the same color code, printed on the pipette. For special applications, there are filter-tips available.

  3. Pipette - Wikipedia

    en.wikipedia.org/wiki/Pipette

    Air displacement micropipettes are a type of adjustable micropipette that deliver a measured volume of liquid; depending on size, it could be between about 0.1 μL to 1,000 μL (1 mL). These pipettes require disposable tips that come in contact with the fluid. These pipettes operate by piston-driven air displacement. A vacuum is generated by ...

  4. Volumetric pipette - Wikipedia

    en.wikipedia.org/wiki/Volumetric_pipette

    Typical volumes are 1, 2, 5, 10, 20, 25, 50 and 100 mL. Volumetric pipettes are commonly used in analytical chemistry to make laboratory solutions from a base stock as well as to prepare solutions for titration. ASTM standard E969 defines the standard tolerance for volumetric transfer pipettes. The tolerance depends on the size: a 0.5-mL ...

  5. Positive displacement pipette - Wikipedia

    en.wikipedia.org/wiki/Positive_displacement_pipette

    Positive displacement pipettes are a type of pipette that operates via piston-driven displacement. [1] [2] Unlike an air displacement pipette, which dispenses liquid using an air cushion in the pipette tip, the piston in a positive displacement pipette makes direct contact with the sample, allowing the aspiration force to remain constant.

  6. Biden's last chance to tackle tobacco: Capping nicotine ... - AOL

    www.aol.com/bidens-last-chance-tackle-tobacco...

    That number would increase, per the study’s projection, to 33.1 million by 2100. If the Biden administration releases the proposed rule next week, it would still likely take several years to ...

  7. Tip - Wikipedia

    en.wikipedia.org/wiki/Tip

    Tip (Unix utility), a software program for remote terminal sessions Terminal Interface Processor, used to provide terminal sessions on ARPANET; Tertiary Ideographic Plane, a range of ideographic characters in the Unicode standard