Burette Tweezers, How Much Do They Cost and Which One to Buy?

November 2, 2021

The Fischer clamp   or also called burette clamp is the clamp specifically used to hold burettes for use in laboratories. To prevent bending of the burette, the burette clamp has a double clamp.

Burette Tweezers or Fischer Tweezers

Within the instruments that we find in a laboratory, the buret clamp is an important piece, I would almost say fundamental. It is a metallic device that, being attached to a universal support , is used to hold a burette.

What is the burette clamp?

The burette clamp  or Fisher clamp  is a metal clamp that when attached to a universal holder, performs the function of holding between one and two burettes. These metal clips are also known as Fisher clips  and they fit on appliances that are shaped like a cylinder. They are adjusted with a screw. When it comes to burette clamps, we do not find a single size and a single shape, but on the contrary, there is a lot of variety.

The metal burette tweezers are the type that have adjustable clamping. And although they have been designed to hold burettes, these clamps are used to hold other types of elements, such as glass funnels.

What is the burette clamp for?

Experiments requiring the use of a buret are prepared with the Fisher or buret forceps  . To cite a few examples, when very careful dosing of liquids is required or when treating with base acids.

The use of this tool makes working with the burettes totally safe, since they have an excellent grip on the burettes , flasks, test tubes, funnels and other elements that we find in the laboratory and need an effective and risk-free grip. , to work with them.

This tool is essential in the laboratory during endless processes. Because it leaves the hands of the technicians free to be able to work on both biological and chemical processes.

Features of the burette clamp

The burette clamp is a metal clamp.
It must be attached to a universal metal bracket to hold a burette.
Although the Fisher Burette Clamp or  Laboratory Clamp is  designed primarily to hold burettes, it can also hold other laboratory devices such as test tubes, funnels, and flasks. The metal burette clamps have a clamping for two burettes, this is called “double clamping”. Its manufacture in the shape of the letter V , is so that it can hold a burette. The buret clamps must be held on or to a universal holder. The clamping of the burettes is by means of the pressure of a spring.

General characteristics

This is an instrument that in some cases may have 2 clamps. Forms can be in V or X . The tweezers that have a V shape are designed to hold a single burette, the tweezers that have an X design are designed in this way, to be able to hold two burettes.

To avoid direct contact between the metal and the glass of the burette, this type of tweezers has a coating on the clamping arms. The covering is usually plastic, but it can also be felt or PVC. The reason why the metal should not come into contact with the glass is to avoid breakage in the buret glass and that there are no spills of biological materials that are dangerous to health.

What is a burette?

A burette is a tube that is generally made of glass, which is graduated and has a large extension. The liquids that need to be worked, investigated or studied in a laboratory are poured into the buret. As the device contains a graduation, it allows the  laboratory worker  or technician to count with accuracy and precision when working with the burette.

How do you use a burette?

To work with the burette, it must be held vertically by fixing it to a universal support .

When you use a burette, before starting you must rinse it several times with the same solution with which you will later proceed to fill.

Always fill the buret above the 0.00 mL mark  .

Burettes generally contain reservoirs to facilitate filling. In the event that the burette that you are going to use does not have such a deposit, you can proceed to fill it with the help of a pipette . The pipette must be graduated. Or you can also use a funnel to fill the burette.

It is important to check that there are no air bubbles. In the event that air bubbles remain, they must be eliminated. To eliminate the bubbles, the outlet hole must be covered with a finger. If the bubbles remain anyway, it is important to refill the buret.

The burette spout should be dried.

The spout is supported on the clean and dry wall of the container used to dispose of liquids. The clamp is opened until the level reaches 0.00 ml.

What is a universal bracket?

A universal holder is a widely used tool in laboratories. One of the most common uses for this type of support is to fix the burette  clamps or Fisher clamps  , which are the ones that hold or hold the burettes. The support is made up of a rectangular shaped foot or base, which has a cylindrical rod. This rod is what allows the holding of different materials with the help of tweezers.

What material is the universal bracket made of?

The universal laboratory support is made up of two parts. The base and the cylindrical rod are made of metal. However, there are supports that have a cast iron base, since they need the material to be heavy, because it has to support the weight of other tools or laboratory elements.

Dr. Loony Davis5
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Born and raised in Brussels in an English family, I have always lived in a multicultural environment. After several work experiences in marketing and communication, I came to Smart Water Magazine, which I describe as the most exciting challenge of my career.
I am a person with great restlessness and curiosity to learn, discover what I do not know, as well as reinvent myself daily, someone who is curious about life and wants to know. I enjoy sharing knowledge.
This is my personal project but I also collaborate in other blogs, it is the case, the most important web on water currently exists in the US, if you are interested you can read my articles here.

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