Experimental design （DOE） was employed to precisely determine the content of rubidium in chloride type brine of Qionglai （A city in Sichuan province, southwest of China） using atomic absorption spectrometry （AAS...Experimental design （DOE） was employed to precisely determine the content of rubidium in chloride type brine of Qionglai （A city in Sichuan province, southwest of China） using atomic absorption spectrometry （AAS） technique. From the statistical analysis of six factors, it was found that K＋ and CI- were the significant interfering elements for the determination of rubidium. A model was established to eliminate the interference effects of K＋ and Cl . The experimental results indicate that, under the optimal conditions, the developed method for the rubidium determination possesses the advantages of low detection limit （0.019 μg·mL^-1 at a significant level of 0.05） and higher recovery （97.2%--103.4%）.展开更多
基金Project supported by the Hundreds of Talents Program of the Chinese Academy of Sciences （No. 2005012）, National Natural Science Foundation of China （Nos. 20872105, 40673022）, and National Key Technology R＆D Program in the 1 lth Five Year Plan of China （No. 2006BAB09B07）.
文摘Experimental design （DOE） was employed to precisely determine the content of rubidium in chloride type brine of Qionglai （A city in Sichuan province, southwest of China） using atomic absorption spectrometry （AAS） technique. From the statistical analysis of six factors, it was found that K＋ and CI- were the significant interfering elements for the determination of rubidium. A model was established to eliminate the interference effects of K＋ and Cl . The experimental results indicate that, under the optimal conditions, the developed method for the rubidium determination possesses the advantages of low detection limit （0.019 μg·mL^-1 at a significant level of 0.05） and higher recovery （97.2%--103.4%）.
