General Catalog

Karl Fischer titration
Introduction to Karl Fischer titration
Karl Fischer water determination is one of the most
frequently used laboratory methods worldwide. In
contrast to other water determination methods it is
specific, fast and the amount of apparatus required is
very small.
With an application range of 0.1% to 100% water,
volumetric Karl Fischer titration is used in a wide
variety of industries. The advantage of volumetry is
that not only liquid samples but also solid or pasty
samples can be put directly into the titration vessel. No
matter whether you want to determine water in food,
cosmetics or pharmaceutical products, with Metrohm
KF titrators you are always right.
For difficult samples we can offer you intelligent solutions
for sample preparation, e.g. the KF oven
technique or sample pulverization with a homogenizer
included in the system.
With a high sample throughput the use of automated
systems pays for itself very quickly. Metrohm KF automation
offers you sophisticated techniques for both
volumetric and coulometric KF titration.
As far as quantities in the trace range (10 µg to
10 mg water absolute) are concerned, coulometry
is the optimal method to determine water in liquids,
solids and gases. Coulometry is also an absolute
method and therefore requires no titer determination.
— KF