论文部分内容阅读
原子吸收光谱法,自1955年首先由Walsh建立起来至今,已成为无机分析领域中的一种有力的常规分析手段,在冶金、地质、医学、生物和环境试样分析中得到了特别广泛的应用。但是在使用原子吸收光谱仪器时常常遇到空心阴极灯光源强度不足的问题,尤其是测定波长低于200纳米的砷、硒等。而在使用石墨炉原子化器时又常常遇到来自分子吸收的严重干扰,需要准确地扣除背景。这些问题一直是人们研究的重要课题。1967年Dawson等首先发表了应用脉
Atomic absorption spectroscopy, which was first established by Walsh in 1955 up to now, has become a powerful routine analytical tool in the field of inorganic analysis and has found particular application in the analysis of metallurgical, geological, medical, biological and environmental samples . However, when using atomic absorption spectrometer, it often encounters the problem of insufficient strength of hollow cathode lamp, especially the determination of arsenic, selenium and the like with the wavelength less than 200 nanometers. In the use of graphite furnace atomizer often encounter serious interference from the molecular absorption, the need to accurately subtract the background. These problems have always been an important issue for people to study. Dawson et al. First published the application vein in 1967