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Microwave digestion technique for the determination of total cadmium in soils

 

作者: G. S. R. Krishnamurti,   P. M. Huang,   K. C. J. Van Rees,   L. M. Kozak,   H. P. W. Rostad,  

 

期刊: Communications in Soil Science and Plant Analysis  (Taylor Available online 1994)
卷期: Volume 25, issue 5-6  

页码: 615-625

 

ISSN:0010-3624

 

年代: 1994

 

DOI:10.1080/00103629409369067

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

A rapid method is described for the determination of total cadmium (Cd) in soils. The soil samples and standard sediment samples were digested in a microwave oven using concentrated HNO3and also by the conventional HF‐HC1O4digestion in platinum crucibles. The Cd content in the extracts was determined using graphite furnace atomic absorption spectro‐photometry (GFAAS). Both digestion methods produced comparable quantitative values for total Cd of standard reference materials obtained from the National Institute of Standards and Technology and a series of surface and subsurface soil samples. Thus, the microwave digestion technique was shown to be an accurate and rapid method for digesting soil samples prior to total Cd analysis.

 

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