This work presents an overview of advanced oxidation methods (AOMs) such as photodegradation, photocatalysis and ozonation, for removal of different pesticides in wastewaters. The emphasis of our work is however on the toxicity of degradation products and on bioanalytical techniques used to assess the toxicity. We have demonstrated that different degradation products can be formed from one compound when using different AOMs. The degradation products vary significantly in their toxicity, which does not always correlate with the degree of mineralization or removal of the starting compound.
COBISS.SI-ID: 1232123
This is a chapter in a most recent book on photothermal spectroscopy and demonstrates the relevance of the author’s scientific work and international recognition of his contributions to the development and application of new optothermal spectroscopic techniques and their utilization for detection in flow injection analysis for bioanalytical assays. In addition to the author’s own achievements, methods developed by other scientists, such as thermal lens microscopy, as well as their applications in the fields of chemical analysis, biomedical and environmental research are presented and compared.
COBISS.SI-ID: 1343995
Laser ablation ICP-MS for quantitative analysis of ancient glasses is subject to calibration issues which have been addressed in our recent work. Since ancient glasses have widely ranging matrix compositions, a complementary analysis by an alternative method is generally employed to determine at least one major element which can be used as an internal standard. We demonstrated that such a complementary analysis is unnecessary utilizing a so-called sum normalization calibration technique using simultaneous measurement of 54 elements with corresponding normalization procedure.
COBISS.SI-ID: 4149786
Conventional pulsed laser deposition (PLD) instruments are more or less black boxes in which PLD is performed virtually "blind", i.e. without having great control on the important PLD parameters. In our preliminary study, for the first time, a 213 nm Nd-YAG commercial laser ablation-inductively coupled plasma mass spectrometer intended for microanalysis work was used for PLD under atmospheric pressure conditions and in and ex situ ICPMS analysis for diagnostics of the thin film fabrication of Sm13.8Fe82.2Ta4.0 on a Ta-coated silicon wafer substrate.
COBISS.SI-ID: 4156442
An antimony film electrode (SbFE) was prepared ex-situ for anodic and adsorptive stripping voltammetric measurement of selected heavy metal ions. The electrode exhibited good linearity for Cd(II) and Pb(II) in a solution of 0.01 M HCl in the concentration range from 25 to 80 µg L-1 with limits of detection of 1.1 µg L-1 for Cd and 0.3 µg L-1 for Pb and an excellent reproducibility. The preplated SbFE was also preliminary tested for measuring low levels of Ni(II) using adsorptive stripping voltammetry revealing good linearity and sensitivity in combination with only a 30 s deposition step.
COBISS.SI-ID: 4345114