催化剂中贵金属的AAS分析
给出了催化剂中贵金属的分析。样品用硫酸或者王水消解后,用火焰AAS进行分析。ABSTRACTA 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 wasused to eliminate chemical matrix interferences. Samples were completely dissolved in sulfuric acid and aqua regia.Overall, the method has resulted in % RSD values ranging from1.1–5.7, 2.2–5.9, and 4.8–5.3 for Pt, Pd, and Rh, respectively the3s detection limits were 5 µ g/L Pt, 3 µ g/L Pd, and 40 µ g/L Rh.