Determination of Rhodium by Inductively Coupled Plasma Atomic Emission Spectrometry With Chemical Vapour Generation Sample Introduction Technique
10.3724/SP.J.1096.2010.00421
- VernacularTitle:在线化学蒸气发生-电感耦合等离子体原子发射光谱法测定废催化剂中的微量铑
- Author:
Xuchuan DUAN
- Publication Type:Journal Article
- Keywords:
Chemical vapour generation;
Inductively coupled plasma atomic emission spectrometry;
Rhodium
- From:
Chinese Journal of Analytical Chemistry
2010;38(3):421-424
- CountryChina
- Language:Chinese
-
Abstract:
An inductively coupled plasma atomic emission spectrometry(ICP-AES) combined with a boron hydride vapour generation device was used for the determination of rhodium in waste catalyst. When the flow rate of sample and sodium borohydride solution was 2 mL/min, waste rate was 6 mL/min, the optimum conditions were as follows: 0.4 L/min of carrier rate, 1.0 mol/L of acidity of nitric acid for vapor generation and concentration of sodium borohydride 1.2(m/V). The study showed that a two-fold increase in the efficiency of rhodium was achieved as compared to nebulization. The detection limit was 6.9 μg/L, which is slight better than that of with nebulization. The linear range for rhodium was 20-1500 μg/L with a correlation coefficient of 0.9986. The mean recovery of sample analysis was 95.5%. Excellent agreement was found between the present method and FAAS.
