121 / 130
both, the chromatographic conditions of separation and quantitative analysis, as well as
sample preparation approach for efficient isolation of the analytes (eg., pesticides, 5-
nitroimidazoles (NDZs), sulfonated azo dyes, drugs, bisphenol A and its metabolites)
form different food samples and subsequent extract clean-up. Sample preparation
procedures for the analysis of various commodities, including sunflower seeds, edible
oils, milk, soya milk, wines, different beverages, candies and caviar/fish roe, were
developed by the optimization of the conditions of analytes isolation from complex
matrices and extracts clean-up. For that purpose, different extraction and clean-up
techniques were used, mainly QuEChERS (quick, easy, cheap, effective, rugged and
safe), ultrasound assisted extraction (UAE), solid-phase extraction (SPE), dispersive-SPE
(d-SPE) and matrix solid-phase dispersion (MSPD).
Additional of research (2017, in cooperation) were:
- application of mobile phases containing ionic liquid for the separation of a mixtures of
selected isoquinoline alkaloids by 2D-TLC and identification of analytes in
Coptidis
Rhizoma
(Huang Lian) extract and
Thalictrum foetidum
root extract by TLC and HPLC–
DAD;
- identification and quantitative analysis of new cancer prodrug in the serum samples: the
determination of ethyl [4-oxo-8-(3-chlorophenyl)-4,6,7,8-tetrahydroimidazo[2,1-
c][1,2,4]triazin-3-yl]acetate (ETTA), a new anticancer prodrug, using adsorptive
stripping voltammetry (AdSV) - was published for the first time.