Merdeka.com – For those of you who frequently intern, of course, test tubes are no longer foreign objects. As one of the tools used during the internship, the test tube has an important role.
For example, in microbiology, test tubes are used for biochemical tests and for growing microbes. In this case, the test tube can be filled with solid or liquid media. The test tube cap can also be cotton, metal, plastic, or aluminum.
Before entering the lab and carrying out any experiment or experiment, it’s a good idea to first learn what tools are used and pay attention to their use, including test tubes. This is done to simplify the experimental process and minimize the risk of experimental failure.
Here’s some information about test tube function which must be known and summarized by merdeka.com through the lab.id report and repository.ac.id.
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Test tube function
Test tube or also called test tube / test tube is one of the tools that can make it easier for you when doing laboratory experiments or experiments. The test tube can be filled with solid or liquid media.
In addition, the cap of the test tube can also be made of cotton, metal, plastic, or aluminum foil. Then the solid support that is inserted into the test tube can be arranged into 2 shapes according to its function, namely the support that will stand (in order for the inner tube) and order it at an angle (so it tilted).
The slope of the supports must also pay attention to the slope of the supports, namely that the surface in contact with the air is not too narrow or too wide and as much as possible avoiding too close a distance of the supports. tube mouth.
This can increase the risk of contamination. Added support to make it tilt around 10-12ml per tube for more efficiency. In more detail, the following is the function of the test object, namely:
- As a container to accommodate medium scale chemical reactions.
- Perform small scale chemical reaction experiments.
- As a container for reproduction of microorganisms in liquid media.
- For mixing, storing and heating small amounts of chemicals.
- For qualitative tests.
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How to use a test tube
Using a test tube usually filled with water in an inverted beaker, the filled water is very helpful in capturing the gas. Test tubes are usually stored in special racks, clamps and clamps.
This tube holder is designed in a different position, usually horizontal, to maximize the surface of the test tube and the reproduction inside. In general, in the chemical heating stage using test tubes there are 2 ways.
The first way is to preheat the test tube in a beaker filled with water then use a burner for the heating process. The second way is to keep holding the test tube with a clamp on the tube clamp.
Do not hold the test tube with your bare hands, you should always wear a test tube clamp or wear heat-resistant gloves so that your hands do not get thermal impact from the chemical reaction and then burn. right on the fire.
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