[en] Particle induced x-ray/gamma emission (PIXE/PIGE) analytical methods were used to determine elemental composition of commonly available food and organic food. Previous measurements of surface concentrations of thick targets indicated issues with inhomogeneity, which have been studied with new measurements. An approach for preparation of thin targets out of organic materials was introduced and tested. Different types of beam particles were used for PIXE and PIGE analysis. Thin targets were prepared by pipetting solution of chemically dissolved samples of fruits and vegetables on Mylar foil, with yttrium added as internal standard. Samples were irradiated at the Centre for Nuclear and Accelerator Technologies (CENTA) with beams of protons and deuterons with energy of ∼3 MeV and alpha particles with energy of ∼4.5 MeV, generated by an accelerator system. The measured spectra were evaluated by the GUPIXWIN software. The determined elements included potassium (K), calcium (Ca), chrome (Cr), manganese (Mn), iron (Fe), copper (Cu), zinc (Zn), bromine (Br), rubidium (Rb), strontium (Sr) and barium (Ba). Spectra obtained using PIGE analyses were evaluated only qualitatively. (authors)
Source
Horvathova, B. (ed.); Sillikova, V. (ed.) (Dept. Nucl. Chem., Fac. of Natural Sciences, Comenius Univ., 81242 Bratislava (Slovakia)); Fac. of Natural Sciences, Comenius Univ., 81242 Bratislava (Slovakia); Faculty of Mathematics, Physics and Informatics, Comenius Univ., 84248 Bratislava (Slovakia); Fac. of Natural Sciences, University of SS. Cyril and Methodius in Trnava, 91701 Trnava (Slovakia); Ing. Julius Plsko - EKOSUR, objekt SHMU, 91931, Jaslovske Bohunice (Slovakia); Slovak Nuclear Society, 918 64 Trnava (Slovakia); Association of Slovak Scientific and Technological Societies, 815 94 Bratislava (Slovakia); Slovak Chemical Society, 812 15 Bratislava (Slovakia); 96924 Banska Stiavnica City (Slovakia); Gemini Association, Fac. of Natural Sciences, Comenius Univ., 81242 Bratislava (SK)); 296 p; ISBN 978-80-223-4795-2; 
; 30 Sep 2019; p. 98-107; 20. Stiavnica Days 2019; Banska Stiavnica (Slovakia); 1-3 Oct 2019; EFRR PROJECTS 26240120012; 26240120026; 26240220004; Also available from: https://fns.uniba.sk/fileadmin/prif/chem/kjd/XX._SD_2019_ZBORNIK_Prispevkov.pdf; 6 tabs., 5 figs., 9 refs.
; 30 Sep 2019; p. 98-107; 20. Stiavnica Days 2019; Banska Stiavnica (Slovakia); 1-3 Oct 2019; EFRR PROJECTS 26240120012; 26240120026; 26240220004; Also available from: https://fns.uniba.sk/fileadmin/prif/chem/kjd/XX._SD_2019_ZBORNIK_Prispevkov.pdf; 6 tabs., 5 figs., 9 refs.