| 盛丽,米 莹,陶彩虹.化学通报,2014,77(5):474-476. |
| 锑(Ⅲ)-碘化钾-罗丹明B体系共振瑞利散射光谱法测定痕量锑 |
| Resonance Rayleigh Scattering Method for the Determination of Trace Amount of Stibiums(Ⅲ) with Potassium Iodide and Rhodamine B Dye Systems |
| 投稿时间：2014-01-14 修订日期：2014-01-22 |
| DOI： |
| 中文关键词: 共振瑞利散射 锑(Ⅲ) 罗丹明B染料 |
| 英文关键词:Resonance Rayleigh Scattering, Stibium (Ⅲ) , Rhodamine B dyes |
| 基金项目:甘肃省财政厅基本科研业务费2014年资助项目，甘财教[2013]116号 |
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| 中文摘要: |
| 在稀硫酸和聚乙烯醇介质中，锑(Ⅲ)与碘离子的配阴离子和罗丹明B染料形成的三元缔合物具有共振瑞利散射光谱。其最强共振瑞利散射峰位于623nm处。锑(Ⅲ)离子浓度在2.000×10-7 mol?L-1～2.560×10-6mol?L-1范围内呈良好的线性关系，检测限为1.9×10-9mol?L-1。基于共振瑞利散射峰的增强，建立了测定痕量锑（Ⅲ）的共振瑞利散射方法。用于水样中锑的测定。 |
| 英文摘要: |
| In the dilute Sulfuric acid and polyving akohol medium, stibiums(Ⅲ) reacts with excessive I- to form a complex anion, [SbI5]2- , which can further react with rhodamine B to form anion-association complex. The ion-association complex can result in a significant enhancement of resonance Rayleigh scattering at 623 nm. The scattering intensity △I of the system is linearly related to the concentration of stibiums(Ⅲ) in the range of 2.000?10-7 mol/L～2.560?10-6mol/L. The detection limit of this method for stibiums(Ⅲ) is1.9?10-9mol/L. This method has been applied to the determination of trace stibiums(Ⅲ) in water with satisfactory results. |
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