Feasibility of direct analysis of algae contamination with chromium and copper on the filter with laser-induced breakdown spectroscopy and laser ablation inductively coupled plasma mass spectrometry

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Authors

HRDLIČKA Aleš HEGROVÁ Jitka BUCKOVÁ Martina PROCHAZKA David HOLÁ Markéta NOVOTNÝ Karel POŘÍZKA Pavel KANICKÝ Viktor KAISER Jozef

Year of publication 2022
Type Article in Periodical
Magazine / Source Spectrochimica Acta, Part B: Atomic Spectroscopy
MU Faculty or unit

Faculty of Science

Citation
Web https://www.sciencedirect.com/science/article/pii/S058485472200132X
Doi http://dx.doi.org/10.1016/j.sab.2022.106488
Keywords Laser-induced breakdown spectroscopy; Laser ablation; Inductively coupled plasma; Mass spectrometry; Algae; Filter
Description The chromium and copper contamination of algae on a filter was directly monitored with laser-induced breakdown spectroscopy (LIBS) as a demonstration of LIBS capabilities. Liquid samples of the green alga Desmodesmus subspicatus were intentionally contaminated with chromium, incubated, filtered, and the filters with the algae were analysed. Inductively coupled plasma mass spectrometry (ICP-MS) was used as a reference method. One half of the filter with the algae was dissolved and analysed as a solution with ICP-MS and the second half was subjected to the LIBS and laser ablation-ICP-MS analysis. Chromium and copper were attributable to the algae contamination and detectable with LIBS. The results from the LIBS provided almost equivalent information about the relative changes of the Cr and Cu concentration in the algae. The sensitivity of LIBS with a Czerny-Turner spectrometer was fully comparable with the ICP-MS procedure. The trends from LIBS were more similar to the LA-ICP-MS ones. It means that the algae growth inhibition in dependence on the chromium or copper content can be alternatively monitored with LIBS instead of the complicated decomposition procedure in ICP-MS analysis.
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