| 四苯硼钠—季铵盐质量滴定法分析常量铷 |
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| 引用本文： | 钟 远,李海军,王 涛,孙 柏,李 武,宋彭生.四苯硼钠—季铵盐质量滴定法分析常量铷[J].盐湖研究,2014(4):11-16. |
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| 作者姓名： | 钟 远 李海军 王 涛 孙 柏 李 武 宋彭生 |
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| 作者单位： | [1]中国科学院青海盐湖研究所,青海西宁810008; [2]中国科学院大学,北京100049 |
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| 基金项目： | 国家自然科学基金项目（20773152）; 青海省科技创新能力促进计划项目（2009-Z-725）资助 |
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| 摘 要： | 采用四苯硼钠—季铵盐质量滴定法分析溶液中的常量铷,考察了松节油用量和共存离子(Ca2+、Mg2+、Li+、CO2-3、SO2-4、B4O2-7)对氯化铷溶液中Rb+分析结果的影响。溶液中Rb+浓度为0.05%0.15%时,分析结果的相对误差<0.3%,加标回收率为99.20%0.15%时,分析结果的相对误差<0.3%,加标回收率为99.20%101.2%。溶液中的共存离子Ca2+、Li+和SO2-4对Rb+分析无影响。
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| 关 键 词： | 铷 四苯硼钠 季铵盐 松节油 质量滴定 |
Determination of Rubidium in High Concentrations by the Mass Titration with Sodium Tetraphenylboron-Quaternary Ammonium Salt |
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| ZHONG Yuan,LI Hai-jun,WANG Tao,SUN Bai,LI Wu and SONG Peng-sheng.Determination of Rubidium in High Concentrations by the Mass Titration with Sodium Tetraphenylboron-Quaternary Ammonium Salt[J].Journal of Salt Lake Research,2014(4):11-16. |
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| Authors: | ZHONG Yuan LI Hai-jun WANG Tao SUN Bai LI Wu and SONG Peng-sheng |
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| Institution: | ZHONG Yuan ,LI Hai-jun ,WANG Tao ,SUN Bai ,LI Wu ,SONG Peng-sheng ( 1. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences ,Xining ,810008, China ; 2. Graduate University of Chinese Academy of Sciences, Beijing, 100049, China) |
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| Abstract: | The rubidium in high concentrations was analyzed by the mass titration sodium tetraphenylboron -quaternary ammonium salt. The effects of turpentine drop number and coexisting ions including Ca2＋ , Mg2＋ , Li＋ , CO3-, SO42- and B4O72- on the determination of rubidium were studied respectively. When the concentrations of Rb＋ were from O. 05% to 0. 15% in weight, the relative error by this method was less than 0.3% ,and the samples recoveries were from 99. 16% to 101.52%. Coexisting ions,such as Ca2＋ , Li＋ , and SO42- have little impact on the analysis of rubidium using this method. |
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| Keywords: | Rubidium Sodium tetraphenylboron Quaternary ammonium salt Turpentine Mass titration |
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