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Comparative Study of Ruthenium, Rhodium and Palladium as Chemical Modifiers in Graphite Furnace Atomic Absorption Spectrometry

 

作者: DimiterL. Tsalev,   VeraI. Slaveykova,  

 

期刊: Spectroscopy Letters  （Taylor Available online 1992）
卷期: Volume 25, issue 2  

页码: 221-238

 

ISSN:0038-7010

 

年代: 1992

 

DOI:10.1080/00387019208020688

 

出版商: Taylor & Francis Group

 

关键词: Atomic Absorption Spectrometry;Electrothermal Atomization;Graphite Furnace;Chemical Modification;Ruthenium;Rhodium;Palladium;Ascorbic Acid

 

数据来源: Taylor

 

摘要:

Comparative study on the efficiency of ruthenium, rhodium and palladium as chemical modifiers for thermal stabilization of 18 analyte elements with high and moderate volatility has been performed. Addition of ascorbic acid provided higher temperatures of thermal pretreatment by +50 to +250°C for the analytes: As, Ge, P, Pb, Se, Sn and Tl, as well as better performence for Ga, In and Tl. Possible mechanisms and trends in stabilization are discussed.

 

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