【摘要】 <正> 信息谱的计算机解谱分析法（CRAIS）是吸收谱的计算机解谱分析法（CRAAS）的发展。CRAIS法是测定铀和硝酸浓度的一个直接分光光度法。即,首先,把UO₂²⁺-HNO₃的吸收光谱分解成二个谱:“零酸铀谱”和“酸信息谱”。然后,以这二个谱为标准谱,并贮存在计算机中作为解谱时的标准谱。为了测量UO₂²⁺-HNO₃溶液中铀和酸的浓度,只需用分更多还原

【Abstract】 CRAIS (Computer Resolution Analysis of Information Spectrum) is a development work of CRAAS ( Computer Resolution Analysis of Absorption Spectrum). CRAIS is a direct spectrophotmetry method which is applied to determination of concentration of uranium and nitric acid. That is one absorption spectrum of UO22+-HNO3 decomposed into two information spectra, "Zero acidity uranium spectrum" and "Acid information spectrum". These two information spectra will be taken as standard spectra and saved in the computer for analysis. To determine the concentration of uranium and acidity in UO22+-HNO3 solution, by scanning to obtain a spectrum of sample with spectrophotometer and running CRAIS program based on the spectrum and two information spectra, the concentration of uranium and nitric acid will be calculated out directly. The accuracy is about+5%.更多还原