费休法常用作很多有机物或无机物中水份的测定;还可以根据各种反应中生成的水份或消耗的水份量,间接测定某些有机功能团。费休法测定水分含量的基本原理是利用碘氧化二氧化硫时,需要定量的水,其化学反应是:这个反应是可逆的,但在有适量甲醇和吡啶存在时,能使反应顺利进行,其化学反应如 Feixiu law commonly used for many organic or inorganic substances in the determination of water; also based on various reactions generated water or consumed water, indirect determination of some organic functional groups. Fischer method to determine the basic principle of moisture content is the use of iodine oxidation of sulfur dioxide, the need for quantitative water, the chemical reaction is: This reaction is reversible, but in the presence of appropriate amount of methanol and pyridine, make the reaction smoothly, the chemical Reaction as