An analytical balance is a type of balance that is used in the measurement of very small masses, mainly those that are below the milligram.
Current analytical balances, especially digital ones, can even accurately measure masses that are between 0.1 µg and 0.1 mg.
Analytical balances are instruments designed for accuracy in measurements, so in their design it is very important to control interactions with the environment.
This is why the place where the balance is located must be carefully guarded, from the room or room, to the table where it sits and the temperature of the room.
Measuring plates of a scale of these characteristics, for example, are usually inside a transparent box, this in order to prevent any external phenomenon (air, even) from influencing its operation.
Another important factor is temperature control: the sample must be at room temperature to prevent natural convection from forming drafts that can cause reading errors.
The analytical balance, on the other hand, has the necessary mechanisms to counteract the mass that is being measured without using real masses. For this, you must have the necessary calibration settings to compensate for gravitational differences.
In this sense, it uses an electromagnet that generates the force that compensates for the sample being measured. The result is thrown by measuring the necessary force that has been required to balance the balance.
Analytical balances can be used to accurately measure very small masses of substances for analysis, for use in the preparation of solutions or for gravimetric analysis.
The analytical balance was invented by the Scottish scientist Joseph Black around 1750. Thanks to its precision, it became a very popular instrument in chemistry laboratories.