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石墨炉原子吸收法直接测定油品中金属元素——砷和铅
"文章介绍采用甲苯稀释,用PE AA600/800 原子吸收直接测定油品中的铅、砷等 杂质元素,结果表明::该方法无论在灵敏度、分析速度、准确度和操作等方面,都可以获得非常满意的结果。"
石油/化工
2013/08/06
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。 ABSTRACT 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.
石油/化工
2005/01/07
珀金埃尔默企业管理(上海)有限公司
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