Potential of multivariate analyses of X-ray fluorescence spectra for characterisation of the microchemical composition of plant materials

Agnese Brangule (Coresponding Author), M. Bērtiņš, A. Vīksna, Dace Bandere

Research output: Contribution to journalArticlepeer-review

Abstract

This work describes a method for the rapid element analysis of plant material using ED-XRF in conjunction with chemometrics. An effective analysis method is developed by measuring certified reference materials (CRM) of plant materials (algae, cabbage, lichen) covering major chemical elements with ED-XRF, to overcome the matrix effect. All samples have been measured additionally by ICP-MS. The ICP-MS analysis was used for missing information on the concentration of some elements in certificated standards. In addition, ICP-MS
with CRM has been used to determine sample related element sensitivity for microelements for ED-XRF analyses. The ED-XRF spectral patterns were used for multivariate principal component analyses by SIMCA strategy instead of each element concentration calculation. The model allows quickly analyse samples for similarity and differentiate them based on a little difference in spectral
pattern, which corresponds to a minor difference in element concentration pattern. Samples with specific chemical composition could be easily spotted for in-depth analysis. The proposed strategy for plant material sample chemical composition screening allows the quick method to improve laboratory work efficiency, reduce unnecessary analysis and rapid method for control reliability of results of more complex chemical methods, such as ICP-MS.
Original languageEnglish
Number of pages9
JournalAgronomy Research
Volume19
Early online dateDec 2021
DOIs
Publication statusE-pub ahead of print - Dec 2021

Keywords*

  • chemometrics
  • ED-XRF
  • ICP-MS
  • Multivariate Analysis
  • plants
  • screening analysis
  • SIMCA

Field of Science*

  • 1.4 Chemical sciences

Publication Type*

  • 1.4. Reviewed scientific article published in Latvia or abroad in a scientific journal with an editorial board (including university editions)

Fingerprint

Dive into the research topics of 'Potential of multivariate analyses of X-ray fluorescence spectra for characterisation of the microchemical composition of plant materials'. Together they form a unique fingerprint.

Cite this