Carlsberg pipettes, glass micropipettes named for their place of invention and first use, The Carlsberg Laboratory, Physiology Department, Copenhagen, Denmark. Used with a mouthpiece for precision biochemical and physiological lab work.

His annoyance with the cumbersome Carlsberg pipette eventually led him to invent the modern micropipette and thus radically change the way in which biologists handle small volumes of liquids. His invention was not a sudden enlightenment; the vexing problem of micropipetting met an ingenious mind who challenged problems from an unconventional angle.

Larger-than-ideal volumes of liquid were transferred using a modified piece of graduated glass tube, which often went by the name of the Carlsberg pipette.

Jun 30, 2024 · Although the precursor of the rubber bulb pipette, known as the Pasteur pipette, had been on the market, it was not until Heinrich Schnitger invented the micropipette in 1957 that the Carlsberg pipette, which involved oral pipetting (Figure 1), was widely used in biological laboratories, posing a significant LAI risk to the experimenters [6].

You can also get positive displacement pipettes that basically has a glass syringe ressoir, but that needs to be cleaned, typically by washing several times with some solvent. They are hard to get as precise as pipettes with plastic tips. And, of course, you can use traditional glass pipettes or Carlsberg pipettes.

Oct 1, 2005 · Here we propose a design for a single handheld pipette adjustable from 0.1 μl to 1000 μl (i.e., 10⁴-fold) which spans the range of an entire suite of current commercial pipettes.

Jun 19, 2009 · In the late 1950's, at the Institute of Physiological Chemistry at the University of Marburg, Germany, a young postdoctoral student, Heinrich Schnitger, found himself very annoyed by repeatedly using a cumbersome Carlsberg pipette (which was made by heating a glass tube over a Bunsen burner and tugging at one end to create a capillary) for ...

These constriction, or Carlsberg, pipettes became the standard in every biochemistry lab, available in sizes from 500 to 0.001ml. But a broken pipette was the stuff of nightmares and keeping them free of contamination was crucial, not to …

Larger-than-ideal volumes of liquid were transferred using a modified piece of graduated glass tube, which often went by the name of the Carlsberg pipette. Researchers constructed these in the lab by heating.

These were based on the so-called Carlsberg pipette, which was made by heating a glass tube over a Bunsen burner and tugging at one end to create a capillary. Further heating a few millimetres from the tip of the capillary cre-ated a restriction that allowed air flow, but limited the flow of liquid to define the vol-ume.