LimsPulse
Physical testing

Moisture Analyser (Halogen / IR LOD Balance)

A balance with a built-in halogen or infrared heater. It dries a sample on the pan and calculates the loss on drying automatically, usually in a few minutes.

  • Pharmaceutical
  • Food
  • Plastics
  • Chemicals
  • Agriculture
Photo of a Moisture Analyser (Halogen / IR LOD Balance)
Photo: Nick Birse, CC BY-SA 4.0 (cropped), via Wikimedia Commons
LEARN & PRACTICE

Test your Moisture analyser knowledge

Multiple-choice questions

Pick an answer to see whether you are right and why.

  1. Q1. What does a moisture analyser measure?

    basic

  2. Q2. What heats the sample in a typical moisture analyser?

    basic

  3. Q3. What is a switch-off criterion?

    intermediate

  4. Q4. How is heating temperature calibrated?

    intermediate

  5. Q5. Results are lower than the oven LOD method. Which is a likely cause?

    intermediate

  6. Q6. A 5.000 g sample weighs 4.850 g at the end of the test. What is the % moisture (LOD)?

    advanced

Viva questions

Think of your answer first, then open it to compare.

  1. 1. Why must a moisture analyser method be checked against the oven method?

    Heating by radiation is different from an oven. The temperature and switch-off settings must be chosen so results agree with the reference method before the analyser replaces it.

  2. 2. What sample handling factors affect the result?

    Sample mass, how evenly and thinly it is spread, how quickly it is loaded (moisture pick-up or loss) and sample uniformity all affect the result.

  3. 3. Why can moisture analyser LOD differ from Karl Fischer water?

    LOD measures all volatiles, including solvents, and may not release tightly bound water. KF measures only water, including bound water.

In LimsPulse · Calibration Management

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

See how