高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 41.

• Atomic Spectrometry • 上一篇    下一篇

Determination of Trace Metals in Air Particulate Matters by Graphite Furnace - Capacitively Coupled Plasma - Atomic Emission Spectrometry

Y. S. Fung, S. F. Cheung   

  1. Department of Chemistry, The University of Hong Kong, Polfulam Road, Hong Kong, SAR, China
  • 出版日期:1999-12-31 发布日期:1999-12-31

Determination of Trace Metals in Air Particulate Matters by Graphite Furnace - Capacitively Coupled Plasma - Atomic Emission Spectrometry

Y. S. Fung, S. F. Cheung   

  1. Department of Chemistry, The University of Hong Kong, Polfulam Road, Hong Kong, SAR, China
  • Online:1999-12-31 Published:1999-12-31

摘要:

In Graphite Furnace - Capacitively Coupled Plasma - Atomic Emission Spectrometry, an atmospheric pressure radio frequency helium plasma is sustained inside a graphite furnace containing a coaxially placed graphite rod antenna. Sample vaporizaiton/atomization can be separated from the excitation step. This technique combines the advantages of highly sensitive GF-AAS and the efficient plasma source for sample decomposition. Thus, it will provide a suitable technique to determine both total trace metals and different speciation of metals existing in various forms with different thermal properties. The information obtained will be useful to assess the health impact and to apportion major sources of air particulate matters.

Abstract:

In Graphite Furnace - Capacitively Coupled Plasma - Atomic Emission Spectrometry, an atmospheric pressure radio frequency helium plasma is sustained inside a graphite furnace containing a coaxially placed graphite rod antenna. Sample vaporizaiton/atomization can be separated from the excitation step. This technique combines the advantages of highly sensitive GF-AAS and the efficient plasma source for sample decomposition. Thus, it will provide a suitable technique to determine both total trace metals and different speciation of metals existing in various forms with different thermal properties. The information obtained will be useful to assess the health impact and to apportion major sources of air particulate matters.

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