Oven method increases the lifetime of the Karl Fischer reagent, reduces or eliminates side effects of direct injection including side reactions and titration cell contamination
The model 774 combines the proven reliability of Metrohm sample changers with the application range of a Karl Fischer oven. Samples are kept in vials on the sample rack.
The vials are then placed, one at a time, into a heating chamber and are purged with dried air or nitrogen gas.
This gas stream quantitatively transports all the moisture into the titration cell.
Moisture content is then determined automatically by a Metrohm Karl Fischer coulometer, or volumetrically with a Metrohm Titrino. Applications.
Petrochemicals including fuels, oils, crudes, hydraulic fluids, and lubricants.
Polymers including pellets, polymer/solvent mixtures, raw materials, and precursors. Pharmaceuticals including powders, liquids, tablets/pills, and lyophilised samples.
Any sample currently run using a Karl Fischer oven, such as food, salts, metals, soaps, and toothpaste. Features.
Oven method increases the lifetime of the Karl Fischer reagent, and reduces or eliminates the possible side effects of direct injection including side reactions, reagent and titration cell contamination.
Individually-capped, disposable sample vials offer a virtually new oven for each sample-reduces clean-up and the chances of contamination and sample carry-over.
Wide temperature range from 50 to 250C handles samples with different analysis requirements with ease.
Removable turntable rack allows for sample vial preparation near a balance and/or PC (weigh your sample, crimp, and start).
Flexible control parameters and use of air or nitrogen gas-programmes and stores specific turntable routines for specific samples.
Handles any level of moisture; connects to the Metrohm Karl Fischer coulometer model 756 for low level moisture analysis, or a Metrohm Karl Fischer Titrino for higher levels, up to 100%.
