12 julio, 2024

Bipetta beral: what it is, characteristics, what it is for

The Beral pipette It is a flexible plastic tube, without measurements, used in laboratory applications that require the transfer of solutions without precision.

This type of pipette is made up of a single piece of plastic, generally made from polyethylene, and has a protrusion at the top that functions as a small liquid retention chamber.

Beral pipettes are similar to Pasteur pipettes, in regards to their basic shape. The most representative difference consists in the manufacturing material, since Pasteur pipettes are made of glass.

The popularity of beral pipettes in the medical and research field is on the rise, since being made of plastic they do not break, and their use is much safer than that of Pasteur pipettes.

Characteristics of beral pipettes

Beral pipets are also known as transfer pipets or disposable pipets, as they are usually used once or only a few times, and then discarded.

In essence, these are disposable droppers. The beral pipettes can be sterilized and reused a maximum of two or three times, after which it is recommended to discard them.

Some of the most representative characteristics of beral pipettes are:

– They are made of low-density polyethylene, that is, flexible plastic.

– The specialized treatment of this plastic resin makes it possible for the surface of the beral pipettes to be non-slip, which facilitates the handling of this type of element with surgical gloves.

– They are not toxic. They also do not react chemically with acids, biological components or other types of solutions.

– They can be sterilized with ethylene oxide or some quaternary ammonium salt.

– Withstand a temperature range between –196 °C and 90 °C.

– Sometimes has slight graduations (marked measurements) on the stem of the pipette. However, its use is not recommended when accurate fluid transfers are required.

Uses of beral pipettes

Beral pipettes are commonly used in medical laboratories or in the execution of various scientific tests. Some of the uses of beral pipettes today are the following:

– They are used to extract human blood samples when managing laboratory tests. The pipettes used for these purposes are usually small and fit the size of the sample collection tubes.

– They are also used in the medical field in the manipulation of specialized diagnostic equipment. In this type of applications, mini-pipettes are usually used, whose capacity ranges between 1 and 4 milliliters, approximately.

– Beral pipettes are commonly used in scientific research, to transfer liquids or samples in analysis plates, for example. Here, fine-tipped pipettes perform excellently.

– Its constitution supports extreme exposure conditions. For example: they can be frozen with liquid nitrogen or be used to submit their content to accelerated aging tests in an oven at 45 °C.


Beral Pipets, Graduated, Pkg. of 500 (sf). Retrieved from: flinnsci.com
Transfer Pipettes Catalog. Globe® Scientific Inc. Retrieved from: globescientific.com
Ridley, J. (2011). Essentials of Clinical Laboratory Science. Delmar-Cengage Learning, Inc. Canada.

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