The Sample Pretreatment Methods for the Determination of Water with Karl Fischer Method

According to the character of the determination of water with Karl Fischer method and the different properties of the samples, the sample pretreatment methods used in the determination of water in inorganic and organic compound, macromolecule polymer, medicine, food and petroleum products by Karl Fischer method were present, induding the addition of cosolvent and inhibitor, acidity adjustment, external dissolution, external extraction, mechanical treatment and combination with the drying furnace (10 ref. cited).