A total reflection X-ray fluorescence spectrometric method was developed for elemental analysis of natural biofilms grown on polycarbonate substrates in the Lake Velence. For the duration of 9 weeks long growing period, two substrates were removed weekly from the lake and investigated by analytical and algological methods. The total biomass production achieved its highest value after 7 weeks. Ca, Sr and Ti, as well as Fe, Mn, K and Zn showed their maximum concentrations in the biofilms after 5 and 6-7 weeks, respectively. The enrichment factors of the 6 weeks old biofilm for the detected seven elements amounted to 103-104. The recommended colonization time for biomonitoring of the Lake Velence is 6 weeks applying polycarbonate substrates.
- Polycarbonate substrates
- Total reflection X-ray fluorescence spectrometry (TXRF)
ASJC Scopus subject areas
- Analytical Chemistry