Druppelpipetten

Druppelpipetten, also known as droppers or Pasteur pipettes, are simple laboratory and household tools used to transfer small amounts of liquid. They typically consist of a narrow tube, often made of glass or plastic, with a bulb at one end that can be squeezed to create suction. As the bulb is released, the liquid is drawn into the tube. Squeezing the bulb again expels the liquid.

The precision of a druppelpipet is generally low, making them unsuitable for accurate volumetric measurements. Instead, they are primarily used for dispensing drops of a liquid or for transferring small, unmeasured quantities. They are commonly found in chemistry labs for adding reagents drop by drop, in medicine for administering liquid medications, and in households for tasks like refilling fountain pens or applying essential oils.

Druppelpipetten come in various sizes and materials. Glass pipettes are often used in laboratories for their chemical resistance and reusability, although they are fragile. Plastic pipettes, while less resistant to certain chemicals and potentially less precise, are disposable and more robust, making them ideal for single-use applications or when dealing with corrosive substances where glass might be a concern. The tip of a druppelpipet can also vary, from a simple opening to a more pointed end for finer dispensing.