Elemental analysis of fish feed by laser-induced breakdown spectroscopy

Md Ashraful Alam, Maria Markiewicz-Keszycka, Camille Pasquet, Fintan Moran, Patrick J. Cullen, Carl Sullivan, Maria P. Casado-Gavalda

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, the potential of laser-induced breakdown spectroscopy (LIBS) as an efficient multi-elemental quantification tool for fish feed is determined. A particular focus of this paper is total chromium, an essential element that has the potential to be toxic and carcinogenic. In total six elements, four macro-elements (Ca, Fe, K and Mg) and two micro-elements (Cr and Rb), were modelled using LIBS spectra of aquafeed samples. Reference analysis was conducted via inductively coupled plasma mass spectrometry (ICP-MS) and showed good agreement with LIBS predictions. These results provide evidence that LIBS has the potential to be utilized in the field as a real-time screening tool for establishing the elemental composition of a range of fish feeds.

Original languageEnglish
Article number121258
JournalTalanta
Volume219
DOIs
Publication statusPublished - 1 Nov 2020

Keywords

  • Aquafeed
  • Chemometric
  • Chromium
  • ICP-MS
  • LIBS

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