稀土单一元素的测定,目前采用的于段主要是发射光谱法,X—射线萤光法,以及中子活化法。但是自从 Willis 提出氧化亚氮作为一种燃烧的优良氧化剂以后,原子吸收光谱法对于稀土物料中的单一稀土的测定,有了迅速的发展,目前原子吸收法已成为单一稀土测定的主要手段之一,在国内,由于稀土元素的空心阴极灯没有大量的制造。氧化亚氮气体的生 Determination of single element of rare earth, currently used in the paragraph mainly emission spectrometry, X-ray fluorescence method, and neutron activation method. Since then, however, Willis has proposed nitrous oxide as an excellent oxidant for combustion. Atomic absorption spectroscopy has been rapidly developed for the determination of single rare earths in rare earth materials. Atomic absorption has now become one of the major means of single rare earth determination In China, due to the rare earth element hollow cathode lamp is not a lot of manufacturing. Nitrous oxide gas generation