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QI Ju-rui1,BAO Chang-li1,JIANG Gui-lan1,ZOU Ming-zhu1,XU Hong-ding1,Lü Nan1,WANG Xing-hui2
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Abstract: 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 4.8mL/min , the enrichment time was 40 s , Pt , Pd , and Rh on the column was eluted with thiourea at a flow rate of 2.0mL/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.
Key words: Pt, Pd, Rh, FI-FAAS, complicated sample
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QI Ju-rui,BAO Chang-li,JIANG Gui-lan,ZOU Ming-zhu,XU Hong-ding,Lü Nan,WANG Xing-hui. On-line Separation-preconcentration and FAAS Determination of Trace Pt, Pd and Rh[J].J4, 2002, 40(04): 408-410.
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URL: http://xuebao.jlu.edu.cn/lxb/EN/
http://xuebao.jlu.edu.cn/lxb/EN/Y2002/V40/I04/408
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