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1 ＣＩＰＡＣＭＴ 30 5 农药水分测定方法之一———卡尔·费休法原卡尔·费休法使用的试剂含有吡啶 ,有毒、奇臭。改进的方法使用了无吡啶试剂 ,吡啶用咪唑来代替。新试剂的优点是反应速度快 ,滴定终点稳定 ,避免了试样中其他组分可能发生的副反应 ,使水的测定按化学计量进
1 CIPACMT 30 5 Pesticide Moisture Assay --- Karl Fischer Pharm Karl Fischer uses reagents that contain pyridine, which is toxic and stinks. The improved method uses a pyridine-free reagent, pyridine with imidazole instead. The advantages of the new reagent is the fast reaction, the end of the titration is stable, to avoid the side effects of other components may occur in the sample, so that the determination of water by stoichiometry