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有机物中微量水分的测定,无论在科学研究还是在有机合成工业、高分子材料工业上都具有十分重要的意义。为了测定有机物中的微量水,可以采用电解法,红外光谱法、气相色谱法、卡尔·弗休法等。其中以卡尔·弗休法应用较为广泛。它对于含水量高于0.01％的样品,具有反应速度快,设备简单,终点明显、稳定等优点。但是,经典的卡尔·弗休试剂中含有大量吡啶,它不仅有令人讨厌的恶臭,而且有毒。长期使用此种试剂,必然会危害
Determination of trace moisture in organic matter, whether in scientific research or in the organic synthesis industry, polymer materials industry has a very important significance. In order to measure the trace amount of water in the organic substance, electrolysis, infrared spectroscopy, gas chromatography, Karl Fischer method and the like can be used. Among them, Karl Fowler method is widely used. It is more than 0.01% for the water content of the sample, with the reaction speed, simple equipment, the end point was obvious, stable and so on. However, the classic Karl Firth reagent contains a large amount of pyridine, which is not only annoying stench, but also toxic. Long-term use of this reagent is bound to endanger