AOAC OMB ERP Approval (8-17-17)

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 - 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. (d-SPE) and matrix solid-phase dispersion (MSPD). Additional of research (2017, in cooperation) were: