微量Pt,Pd和Rh的在线分离富集与FAAS测定  

On-line Separation-preconcentration and FAAS Determination of Trace Pt, Pd and Rh

作　　者：齐菊锐[1] 鲍长利[1] 姜桂兰[1] 邹明珠[1] 许宏鼎[1] 吕男[1] 王兴 

机构地区：[1]吉林大学化学科学学院,长春130023 [2]吉林省医药职工中等专业学校,长春130031

出　　处：《吉林大学学报（理学版）》2002年第4期408-410,共3页Journal of Jilin University:Science Edition

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 online separation and preconcentration with VSⅡ 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 48 mL/min, the enrichment time was 40 s, Pt, Pd and Rh on the column was eluted with thiourea at a flow rate of 20 mL/min, and introduced into the nebulizer system of FAAS. The detection limit is 0064 μg/mL for Pt, 0074 μg/mL for Pd and 0025 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.

关 键 词：PT Pb RH 铂 色 铑 流动注射在线分离富集 火焰原子吸收光谱法 复杂样品 含量测定 

分 类 号：O614.82[理学—无机化学] O657[理学—化学]