Moisture Content - Karl Fischer Test
MOSKF
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Turnaround Time:
2-3 Days
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Method Description
Moisture by Karl Fischer is determined by automated potentiometric titration with an iodine and sulfur dioxide reagent. Moisture is extracted into an appropriate solvent and is titrated volumetrically (as opposed to colorimetric titration). This method is applicable to high-fat samples or samples that contain compounds that may volatilize when heated or subjected to vacuum (e.g. alcohol, glycerine, etc.)
Analyte List
Technical Data Sheet
Test Name - Common
Moisture Content - Karl Fischer Test
Method Name
Karl Fischer Coulometric Titration
Method Code
LAB-TM-058
Equipment
Standard titration setup
Method Reference
AOAC 984.20, USP <921>
Reportable Unit
%
Sample Size Requirements
20 grams
Available for
Food Products,
Dietary Supplements,
Botanicals (Raw Materials, Extracts, Finished Products),
API (Isolates, Active Ingredients)
Cannabis & Hemp (Extracts, Isolates, MIPs)
Additional Information
Moisture in most food materials can be determined by loss on drying using a Gravimetric Moisture method. For samples high in fat or that contain components that will volatilize under the conditions of the Gravimetric Moisture assays, the Karl Fischer titration may be more appropriate.
Note that chemically bound water molecules may be incompletely detected by this method.
*Prices and offerings are subject to change without notice.
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