The oven method enables you to analyze samples that cannot be titrated directly.
This might be the case for various reasons, e.g., because your sample:
- does not dissolve easily,
- releases the water only at high temperatures, or
- reacts with the KF reagent.
The oven method involves heating the samples and transferring the evaporated water to the titration cell by means of a dry carrier gas. As only the water gets in contact with the KF reagent, the electrode and the titration cell are not contaminated, and carryover or memory effects that could distort the results are excluded.