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自由原子的萤光现象早在1905年就被人们发现,它是从熔融金属钠产生的钠原子蒸气吸收能量后,外层电子由基态跃迁至高能态,当从高能态回到低能态时,能量以光的形式辐射而产生萤光。在1924年人们又从Ba、Ca、Na、Li和Sr盐的火焰中观察到原子萤光,后来又有人从Ag、Cd、Cu、Hg、Mg,Na和T1盐的火焰中观察到原子萤光现象。1961年有人用一般的空心阴极灯在氢氧火焰中观察了镁的原子萤光,直到1964年才将原子萤光这一物理现象用于分析化学。成为一种有用的分析工具。
As early as 1905, the phenomenon of free-atom fluorescence was discovered. After the sodium atom vapor generated by molten sodium absorbed energy, the outer electrons transition from the ground state to the high energy state. When returning from the high energy state to the low energy state, Energy radiates in the form of light to produce fluorescence. In 1924, atomic fluorescence was observed again from the flames of Ba, Ca, Na, Li and Sr salts. Later, some people observed atomic fluorescence from the flames of Ag, Cd, Cu, Hg, Mg, Na and T1 salts Light phenomenon. In 1961 some people use the general hollow cathode lamp in hydrogen and oxygen flame was observed in atomic fluorescence of magnesium, and only in 1964 did not use the physical phenomenon of atomic fluorescence for analytical chemistry. Become a useful analytical tool.