Data intercomparison and determination of toxic and trace elements in Algae using Instrumental Neutron Activation Analysis

중성자방사화분석에 의한 Algae중의 독성미량원소의 정량 및 실험실간 비교검증

  • Received : 1999.03.09
  • Published : 1999.08.25

Abstract

For the non-destructive multi-elemental analysis of environmental and biological materials, instrumental neutron activation analysis (INAA) was applied for the determination of toxic and trace elements in a set of three Algae samples provided by the International Atomic Energy Agency (IAEA). The analytical quality control was evaluated by comparing the analytical results of two standard reference materials of the National Institute of Standards and Technology (NIST); Oyster Tissue (SRM 1566a) and Citrus Leaves (SRM 1572). According to given analytical procedure, the concentration of 15-25 elements including spiked elements such as As, Cd, Cr and Hg in Algae samples were determined. To identify and validate these results, a data intercomparison program using more than 35 analytical methods in 150 laboratories was carried out and the estimated statistical data are summarized. Result of INAA is favorable, therefore, it is illustrated that can be applied for routine analysis of essential and toxic elements in algae samples as well as analytical quality assurance.

Keywords

instrumental neutron activation analysis;gamma-ray spectrum;data intercomparison;algae;toxic and trace element;analytical quality control

References

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Acknowledgement

Supported by : 과학기술부