Here's why:

* High Precision: Analytical balances are designed to measure extremely small masses with high accuracy, typically to the milligram (mg) or even microgram (µg) level. This precision is crucial for scientific experiments where even small variations in mass can significantly impact results.

* Sensitivity: They are highly sensitive to changes in mass, making them ideal for measuring delicate samples like dry chemicals.

* Calibration: Analytical balances can be calibrated to ensure their accuracy and reliability.

Other instruments, like a triple beam balance, may be used for less precise measurements, but an analytical balance is the preferred choice for precise mass determination in scientific settings.