Search Results - "Grahek, Željko"
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137 Cs in mushrooms from Croatia sampled 15-30 years after Chernobyl
Published in Journal of environmental radioactivity (01-01-2018)“…The aim of this study was to select species with higher potential to accumulate Cs among the available mushroom species, by determining the activity…”
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2
Efficient separation of strontium radionuclides from high-salinity wastewater by zeolite 4A synthesized from Bayer process liquids
Published in Scientific reports (18-01-2021)“…The efficient, selective, and economical sorbents for the removal of Sr radionuclides are largely needed for the decontamination of effluents with high…”
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3
Determination of radioactive strontium in seawater
Published in Analytica chimica acta (08-04-2005)“…This paper describes the procedures of isolating strontium and yttrium from seawater that enable the determination of 89,90Sr. In one procedure, strontium is…”
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Nuclear forensics case in Croatia: elevated U and Ra radioactive material found at Karasovići border
Published in Journal of radioanalytical and nuclear chemistry (01-02-2024)“…A case of illegal possession of suspect material at the Karasovići border crossing in Croatia was recently recorded and resolved. An increased activity of 226…”
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5
Comparison of some of the analytical techniques and their applications to environmental radiostrontium determination
Published in Journal of radioanalytical and nuclear chemistry (2024)“…The knowledge about behavior of 90 Sr in environment is of importance to prevent and control contamination. A large number of analytical methods have been…”
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6
Study of uranium biosorption process in aqueous solution by red beet peel
Published in Journal of radioanalytical and nuclear chemistry (01-03-2022)“…Red beet peel was utilized for U(VI) removal in a batch system. The characterization of prepared biosorbent was performed by Fourier transform infrared…”
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Radioactivity in food crops from the family farms in Croatia with ingestion dose assessment
Published in Food control (01-01-2025)“…The results of radioactivity measurements and transfer factor calculations of natural and anthropogenic radionuclides in various food crops from family farms…”
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Radionuclides determination by alpha (210Po, 228,230,232Th) and gamma (226,228Ra, 137Cs, 40K) spectrometry in children's food in Croatia with assessment of cumulative ingestion dose for infants
Published in Journal of food composition and analysis (01-12-2024)“…This work presents comprehensive results of alpha (210Po, 228,230,232Th) and gamma (40K, 226,228Ra, 137Cs) radioactivity measurements in selected food…”
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9
137Cs in mushrooms from Croatia sampled 15–30 years after Chernobyl
Published in Journal of environmental radioactivity (01-01-2018)“…The aim of this study was to select species with higher potential to accumulate 137Cs among the available mushroom species, by determining the activity…”
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10
Angle vs. LabSOCS for HPGe efficiency calibration
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-03-2019)“…The quantitative determination of radionuclides by gamma ray spectrometry requires a high accuracy of detection efficiency determination. Different software…”
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11
Radiostrontium determination by combination of automated Sr isolation and “on-column” Cherenkov detection using chromatographic model
Published in Journal of Chromatography A (13-09-2023)Get full text
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12
Semi-automated procedure for the determination of [sup.89,90]Sr in environmental samples by Cherenkov counting
Published in Journal of radioanalytical and nuclear chemistry (01-02-2015)“…The paper describes semi-automated procedure for determination of [sup.89,90]Sr in drinking water. It includes quantitative capture of [sup.89,90]Sr on…”
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13
Measurement of tritium in the Sava and Danube Rivers
Published in Journal of environmental radioactivity (01-10-2016)“…Two nuclear power plants (NPP), the KrškoNPP (Slovenia) on the Sava River and the Paks NPP (Hungary) on the Danube River, are located in the immediate vicinity…”
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14
Determination of uranium and thorium in complex samples using chromatographic separation, ICP-MS and spectrophotometric detection
Published in Talanta (Oxford) (15-11-2009)“…The paper describes a research of possible application of UTEVA and TRU resins and anion exchanger AMBERLITE CG-400 in nitrate form for the isolation of…”
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15
Continuous separation of Sr, Y and some actinides by mixed solvent anion exchange and determination of [sup.89,90]Sr, [sup.238,239]Pu and [sup.241]Am in soil and vegetation samples
Published in Journal of radioanalytical and nuclear chemistry (01-09-2012)“…Methodology for the determination of [sup.89,90]Sr, Am and Pu isotopes in complex samples is given. Methodology is based on simultaneous isolation of Sr, Y and…”
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16
Synergy of flow injection system and molecular recognition technology products for rapid determination of 89,90Sr and 210Pb
Published in Talanta (Oxford) (01-04-2021)“…A rapid, automated separation procedure was developed for radioactive strontium and lead isotope determination. This system includes a portable automated…”
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17
The effect of counting conditions on pure beta emitter determination by Cherenkov counting
Published in Journal of radioanalytical and nuclear chemistry (01-11-2016)“…The Cherenkov counting efficiencies measured by three commercially available liquid scintillation counters, Triathler, Tri-Carb 3180, Hidex 300 SL were…”
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18
Novel approach for strontium preconcentration from seawater and rapid determination of 89,90Sr in emergency situations
Published in Talanta (Oxford) (01-12-2022)Get full text
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Rapid determination of [sup.89, 90]Sr in wide range of activity concentration by combination of yttrium, strontium separation and Cherenkov counting
Published in Journal of radioanalytical and nuclear chemistry (01-05-2012)“…The methodology for the rapid determination of [sup.89,90]Sr in wide range of activity concentration is given. Methodology is based on simultaneous separation…”
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20
Semi-automated procedure for the determination of 89,90Sr in environmental samples by Cherenkov counting
Published in Journal of radioanalytical and nuclear chemistry (01-02-2015)“…The paper describes semi-automated procedure for determination of 89,90 Sr in drinking water. It includes quantitative capture of 89,90 Sr on SuperLig 620…”
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