LimsPulse
General lab & storage

Ultrasonic bath (sonicator)

A stainless-steel tank of water vibrated by ultrasound. It is used to dissolve and extract samples, degas mobile phases and clean small glassware.

  • Pharmaceutical
  • Chemicals
  • Food testing
  • Electronics
  • Jewellery and precision cleaning
Photo of a Ultrasonic bath (sonicator)
Photo: Karelj, Public domain (cropped), via Wikimedia Commons
TROUBLESHOOTING

Common problems, causes and fixes

Weak or no cavitation
Likely causes
  • • Water level too low or too high
  • • Fresh water not degassed
  • • Transducer or generator failure
What to do
  • • Fill to the marked line
  • • Run in degas mode before use
  • • Have the unit serviced
Low or variable assay recovery
Likely causes
  • • Sonication time too short
  • • Flask in a dead spot
  • • Sample overheated and degraded
What to do
  • • Follow the method time exactly
  • • Use the same rack positions; use sweep mode
  • • Control bath temperature, add ice if needed
Bath gets very hot
Likely causes
  • • Long continuous runs
  • • Heater left on
What to do
  • • Change or cool the water between runs
  • • Switch off the heater when not required
Tank floor pitted or leaking
Likely causes
  • • Abrasive material on the floor
  • • Long-term cavitation erosion
What to do
  • • Always use a basket or rack
  • • Replace the tank or unit
In LimsPulse · Calibration Management

Keep every Sonicator in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.

See how