Karl Fischer titration advantages for measuring moisture
There are multiple methods of moisture determination, including loss on drying, Karl Fischer titration, piezoelectric sorption, spectroscopy, and chilled mirrors among others. However, it is advantageous to use Karl Fischer (KF) titration in moisture analysis for the following reasons:
- It is highly accurate and precise.
- KF is specific to water determination. This specification is different from the other popular moisture analysis method, loss on drying (LOD), because LOD can detect the loss of any volatile substance. However, this specification is advantageous because it allows KF titration to work independent from volatile substances present in the sample
- The process does not require large samples, which is especially true with coulometric Karl Fischer titrators.
- It does not require much time to perform an analysis since the samples are easy to prepare and the analysis itself is short in duration.
- The method has a nearly unlimited measurement range (from 1ppm to 100%).
- Karl Fischer titration can determine the moisture content of a sample in any state, whether it is a solid, liquid, or gas.
The above advantages show that Karl Fischer titrators are versatile and efficient scientific instruments to use for moisture analysis.
