Gravimetric analysis can be automated using modern instruments and techniques that reduce manual work and improve accuracy. Here’s how it can be done:
- Automated sample handling:
- Robots or autosamplers can weigh, transfer, and prepare samples precisely without human intervention.
- Automated precipitation and filtration:
- Precipitates can be formed and separated using automated filtration systems, microfilters, or centrifuges.
- Controlled drying or ignition:
- Furnaces or ovens with temperature control can dry or ignite precipitates automatically to a constant weight.
- Electronic balances and data logging:
- High-precision electronic balances measure the precipitate, and software can record and calculate results automatically.
- Electrogravimetry automation:
- In electrogravimetry, a current-controlled system deposits the metal on an electrode and automatically measures the weight change.
- Software integration:
- Entire procedures—from weighing to calculation—can be monitored and processed by software, reducing human error and saving time.
In short:
Automation in gravimetric analysis uses robotics, precise balances, controlled heating, centrifuges, and software to make the method faster, more accurate, and less labor-intensive.