On the effect of catalyst status in the quantitative determination of platinum in Pt-Sn/MgO materials

被引：0

作者：

S. Recchia

Damiano Monticelli

Andrea Pozzi

Laura Rampazzi

Carlo Dossi

机构：

[1] Dipartimento di Scienze Chimiche Fisiche e Matematiche,

[2] Università degli Studi dell’Insubria,undefined

[3] Via Lucini,undefined

[4] 3 22100 Como,undefined

[5] Italy e-mail: recchia@fis.unico.it,undefined

[6] Dipartimento di Chimica Inorganica,undefined

[7] Metallorganica e Analitica,undefined

[8] Università degli Studi di Milano,undefined

[9] Via Venezian,undefined

[10] 21 20133 Milano,undefined

[11] Italy,undefined

来源：

Fresenius' Journal of Analytical Chemistry | 2001年 / 369卷

关键词：

Oxide; Magnesium; Microwave; Platinum; Atomic Absorption;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The development of an analytical method for the determination of platinum in MgO based Pt/Sn catalysts is described. Electrothermal atomic absorption spectroscopy (ETAAS) was chosen because of its high sensitivity and robustness against spectral interferences. All the sources of chemical interferences were statistically analyzed and corrections were adopted for the presence of magnesium oxide support. The effectiveness of different mineralization procedures was critically evaluated as a function of the chemical of the solid catalyst. Microwave digestion allowed recovery of metal of 100% for all the catalysts analyzed and exhibited significant better precision values than other digestion methods, which could nevertheless be utilized under proper conditions in selected cases.

引用

页码：403 / 406

页数：3