催化劑中貴金屬的AAS分析403
上一篇 / 下一篇 2008-07-21 13:03:42/ 個(gè)人分類：原子吸收
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給出了催化劑中貴金屬的分析。樣品用硫酸或者王水消解后，用火焰AAS進(jìn)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.
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催化劑原子吸收貴金屬