Analytical balance

Analytical Balance

An analytical balance is a highly precise weighing scale used for measuring mass in the sub-milligram range. The measuring pan of an analytical balance is inside a transparent enclosure with doors so that dust does not collect and so any air currents in the room do not affect the balance's operation.

History

The first analytical balance was invented by Scottish scientist Joseph Black in the 18th century. It was further refined by French chemist Antoine Lavoisier and English scientist Henry Cavendish in the late 18th and early 19th centuries.

Design and Operation

The analytical balance is designed with a high level of precision and accuracy. It uses a beam with a sliding weight, which is moved along the beam until the beam is in equilibrium. The weight of the sample is then read from the position of the sliding weight.

Applications

Analytical balances are used in a wide range of applications, including laboratory work, pharmaceutical manufacturing, chemical analysis, and quality control procedures. They are essential tools in fields such as chemistry, biology, pharmacology, and forensic science.

Maintenance and Calibration

Maintenance and calibration of an analytical balance are crucial to ensure accurate measurements. Calibration involves comparing the measurements of the balance with a known standard, while maintenance includes regular cleaning and servicing.

See Also

• Microbalance
• Precision scale
• Weighing scale