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研究了铬(Ⅵ).碘化物.维多利亚蓝4R体系的共振瑞利散射光谱和二级散射光谱,考察了它们的光谱特征、影响因素和适宜的反应条件。确定了共振瑞利散射强度和二级散射强度与铬(Ⅵ)的浓度的关系,提出了用RRS光谱间接测定痕量铬(Ⅵ)的新的高灵敏分析方法。
Chromium (Ⅵ) has been studied. Iodide. Resonance Rayleigh Scattering Spectra and Second-order Scattering Spectra of Victoria Blue 4R System were investigated. Their spectral characteristics, influencing factors and suitable reaction conditions were investigated. The relationship between resonance Rayleigh scattering intensity and secondary scattering intensity and Cr (Ⅵ) concentration was determined. A new sensitive analytical method for the indirect determination of trace chromium (Ⅵ) by RRS spectroscopy was proposed.