Measuring Sample Moisture with a Karl Fischer Moisture Analyzer
The Karl Fischer moisture analyzer rapidly determines trace moisture in samples and is the most professional method for moisture content determination.
Moisture affects the processing, service life, usability and quality of many products, for example in the pharmaceutical, chemical, food and new energy industries, so monitoring moisture content is essential. Most products have an optimal moisture content for their manufacturing processes, and regulations impose strict limits on the moisture content of certain products. VicoMeter helps you perform compliant moisture determination.
Whether in the laboratory or in production, VicoMeter Karl Fischer moisture analyzers save you time and cost by improving your workflow efficiency. We offer two different Karl Fischer solutions for accurate moisture determination of your samples.
The Karl Fischer method (volumetric and coulometric), proposed by Karl Fischer, is the most water-specific and accurate chemical method; recent improvements raised accuracy and range, making it the standard for many substances...
VicoMeter is an expert in moisture determination, offering a wide range of reliable and easy-to-use moisture analyzers. Karl Fischer moisture analyzers are ideal for applications spanning the full range of moisture contents, quickly and accurately determining moisture up to 100%. The optimized reaction cell maintains very low drift, enabling moisture determination of liquid, solid and gaseous samples. We provide professional solutions for quality control, production and more in the chemical, pharmaceutical, plastics and food industries.
When the moisture content of your sample is below 1000 ppm, a Karl Fischer coulometric moisture analyzer is ideal. For more details on the differences and solutions, please contact VicoMeter customer service.
When the moisture content of your sample is above 1000 ppm, a Karl Fischer volumetric moisture analyzer is ideal. For more details on the differences and solutions, please contact VicoMeter customer service.
For samples that cannot be added directly to the electrolytic cell, gas-phase extraction is a perfect solution. The sample is placed in a sample boat/vial, moved into the heating oven or sample rack, and heated to a specific temperature (up to 300˚C). The moisture is extracted and transferred to the titration vessel by dry air or nitrogen, and the moisture concentration is then measured by the Karl Fischer analyzer.
The gas phase extraction method allows convenient and accurate moisture determination of solid or viscous samples, for example:
Substances whose moisture must be released by heating: powdered or granular plastic products
Substances that react side-wise with Karl Fischer reagent: oxidizing inorganic salts
Highly adhesive substances: fibers or pastes
Hard-to-dissolve or insoluble substances: lubricating oil, wool, flour, tar, or coal
The VicoMeter Karl Fischer oven system easily heats the sample in the sample boat to 100-300°C. The released water vapor is carried by the carrier gas into the electrolytic cell of the Karl Fischer moisture analyzer, where it is instantly absorbed by the Karl Fischer reagent, enabling accurate moisture determination of samples with low moisture content or low density.
The rugged and durable design of the VicoMeter Karl Fischer oven ensures trouble-free sample handling and correct results. The sample vial is placed in the oven body, where it is continuously heated from the bottom and all sides, ensuring uniform temperature distribution. The moisture released from the sample is transferred to the titration vessel via the carrier gas. A specially designed rubber stopper ensures a perfect seal with no vapor escape, achieving a recovery rate of up to 100% and guaranteeing accurate results from the subsequent Karl Fischer analyzer measurement.
Typical Industries:Pharmaceuticals
Typical Applications:Moisture content testing of chemical drugs, APIs, freeze-dried powders, capsules, solvents, pharmaceutical powders, pharmaceutical intermediates, etc.
Typical Industries:Food
Typical Applications:Moisture content testing of edible oils, dairy products, seasonings, puffed foods, pet foods, etc.
Typical Industries:Lithium Battery
Typical Applications:Moisture testing of cathode materials and precursors, anode materials, electrolytes, separators, electrode sheets, and slurries
Typical Industries:Chemicals, Rubber & Plastics
Typical Applications:Moisture determination of rubber, plastics, basic chemicals, coatings & dyes, polymer plastics, petroleum products, etc.
Related Applications
Related Products
Recently Viewed Products
Copyright © Jiangsu Victor Instrument Meter Co., Ltd. All rights reserved | Sitemap | Technical Support: VicoMeter Operations Center
