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一、引言水中重水含量的测定法,常用的有比重法、浮沉子法、质谱法、色谱法和红外吸收光谱法等。前两种方法皆基于比重的测定,而以精确度较高的浮沉子法应用较多。由于水中杂质对此法测定有很大的影响,因而需预先将样品严格净化,操作复杂,很费时间。
I. Introduction Determination of heavy water content in water, commonly used method of gravity, floating sub-sub-method, mass spectrometry, chromatography and infrared absorption spectroscopy. The first two methods are based on the determination of specific gravity, while the more accurate float-sub-method is applied. As the water impurities on the determination of this method has a great impact, which requires strict pre-purification of the sample, the operation is complicated, it is time-consuming.