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Related Experiment Videos

Determination of trace elements in standard reference materials by the ko-standardization method.

B Smodis1, R Jaćimović, S Jovanović

  • 1Jozef Stefan Institute, E. Kardelj University, Ljubljana, Yugoslavia.

Biological Trace Element Research
|July 1, 1990
PubMed
Summary

The ko-standardization method accurately determines multiple elements using reactor neutron activation analysis (NAA). This technique showed less than 8% error for 12 elements in NIST leaf standards.

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Area of Science:

  • Analytical Chemistry
  • Nuclear Chemistry

Background:

  • Neutron activation analysis (NAA) is a powerful technique for elemental determination.
  • Standardization is crucial for accurate quantitative analysis in NAA.

Purpose of the Study:

  • To evaluate the suitability of the ko-standardization method for routine multielement analysis.
  • To assess the accuracy of the ko-standardization method using certified NIST standard reference materials.

Main Methods:

  • Reactor neutron activation analysis (NAA) was employed.
  • The ko-standardization method was applied for quantitative analysis.
  • Analysis was performed on NIST standard reference materials: SRM 1571 Orchard Leaves, SRM 1572 Citrus Leaves, and SRM 1573 Tomato Leaves.

Main Results:

Related Experiment Videos

  • The ko-standardization method demonstrated suitability for routine multielement determinations.
  • Systematic errors for 12 certified elements in NIST leaf standards were found to be less than 8%.
  • Thirty-four elements were successfully determined in the proposed NIST SRM 1515 Apple Leaves.

Conclusions:

  • The ko-standardization method is a reliable and accurate approach for multielement analysis via NAA.
  • The method's low systematic error validates its use with various plant-based reference materials.
  • This technique is well-suited for routine applications in elemental analysis laboratories.