催化剂中贵金属的AAS分析403

上一篇 / 下一篇  2008-07-21 13:03:42/ 个人分类:原子吸收

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给出了催化剂贵金属的分析。样品用硫酸或者王水消解后,用火焰AAS进行分析。
摘要:
A flame atomic absorption spectrometric method is described for the determination of platinum, palladium, and rhodium in used and fresh alumina- supported and sieve catalysts. A lanthanum solution was used to eliminate chemical matrix interferences. Samples were completely dissolved in sulfuric acid and aqua regia.

Overall, the method has resulted in % RSD values ranging from
1.1–5.7, 2.2–5.9, and 4.8–5.3 for Pt, Pd, and Rh, respectively;
the 3s detection limits were 5 µg/L Pt, 3 µg/L Pd, and 40 µg/L Rh. 



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TAG: aaspeperkinelmer催化剂原子吸收贵金属

 

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