摘要
提出用VS- 型碱性阴离子交换纤维流动注射在线分离富集-火焰原子吸收光谱法(FI-FAAS)测定复杂样品中的Pt,Pd和Rh的分析方法.该方法检测限低,Pt:0.064μg/mL,Pd:0.074μg/mL,Rh:0.025μg/mL,采样频率大,可用于复杂样品中痕量贵金属的测定.
The technique of the flow injection online separation and preconcentration with VSⅡ type anion exchange fabric combined with flame atomic absorption spectrometry was used to determine the trace elements Pt, Pd and Rh in complicated samples. The analyzed solution with acidity 3%(HCl) passed through the column at a flow rate of 48 mL/min, the enrichment time was 40 s, Pt, Pd and Rh on the column was eluted with thiourea at a flow rate of 20 mL/min, and introduced into the nebulizer system of FAAS. The detection limit is 0064 μg/mL for Pt, 0074 μg/mL for Pd and 0025 μg/mL for Rh, the relative standard deviation(n=6) is less than 3%, at least 55 samples can be analyzed in an hour. The method has been applied to determining trace Pt, Pd and Rh in complicated samples with satisfactory results.
出处
《吉林大学学报（理学版）》
CAS
CSCD
北大核心
2002年第4期408-410,共3页
Journal of Jilin University:Science Edition
