Water Content of Chewing Gum
The water content of chewing gum is determined by moisture titration using Karl Fischer reagent.
This type of food samples is often hard to dissolve in KF solvent with side reaction, and therefore, the indirect method using an oven to evaporate moisture in sample is generally practiced.
The test sample is first heated in the oven, and the evaporated moisture is transferred to solvent by carrier gas where moisture titration is performed by standard Karl Fischer Titration.
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