原子光谱线位移机理的研究  

Wavelength Shift of Atomic Spectral Lines

作　　者：刘克玲[1] 

机构地区：[1]中国科学院过程工程研究所(原中国科学院化工冶金研究所),北京100080

出　　处：《光谱学与光谱分析》2003年第3期446-450,共5页Spectroscopy and Spectral Analysis

摘　　要：在 0～ 80 0nm光谱范围 ,观察发现了原子光谱线位移与波长、温度、湿度及压力变化之间的非线性函数关系 ,绘制了它们之间的非线性函数关系曲线 ,给出了表达方程式 ;实验证实这些非线性函数关系对不同类型的光谱仪具有普遍适用性。观察发现了原子光谱线半宽度与温度变化之间的非线性函数关系。利用以上发现 ,开发了电感耦合等离子体光谱仪的智能波长校正装置和方法。实践证明 ,该装置和方法能有效地校正波长。One-dimension wavelength shift of atomic spectral lines in 0-800 nm spectral range was observed, and the relationships between temperature, humidity, pressure, and the magnitudes of wavelength shift of the atomic spectral lines were found, which were expressed as some polynomial equations in this paper. The universality of these wavelength shift equations (above mentioned polynomial equations) is primarily proved experimentally. The nonlinear relationship between the half-width of spectra lines and temperature was also found. Based on these equations, an intelligent wavelength calibration device (IWC) was designed in the author's lab. The analytical results of samples indicate that IWC is useful and effective.

关 键 词：原子光谱 光谱线位移 电感耦合等离子体光谱仪 波长校正 

分 类 号：O657.31[理学—分析化学] O562.31[理学—化学]