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  • Author or Editor: E. Havránek x
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Abstract  

Determination of Mn, Fe, Cu, Zn, Hg, Pb, Br, Se, Rb, Sr and Cd in the medicinal plants by radionuclide X-ray fluorescence analysis (using238Pu,241Am/Ag and125I) is described.

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Abstract  

Methods of sample treatment in XRF analysis of hair are studied in view of the effect on analytical results. A new method is proposed based on the incomplete ashing of hair followed by pellet preparation. Its suitability is estimated on the XRF analysis of real hair samples collected from 4 healthy adults.

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Abstract  

Determination of Mn, Fe, Ni, Cu, Zn and Pb in human soft tissues by radionuclide X-ray fluorescence analysis /using238Pu and109Cd sources/ is described.

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Abstract  

A photon-induced X-ray fluorescence method, which allows the simultaneous determination of iron, copper, zinc, bromine and rubidium in human blood and blood plasma samples is described. The method is reliable and has a good sensitivity for a wide range of elements.

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Abstract  

The applicability of two nuclear analytical methods for the determination of hepatacaine hydrochloride in solution was studied, i. e. radionuclide X-ray fluorescence analysis and radiometric titrations based on precipitate formations. Methods used were evaluated on the basis of obtained sensitivity values.

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Abstract  

The radionuclide X-ray fluorescence analysis was used for the determination of Fe, Zn, Br and Rb levels in whole blood from dilated cardiomyopathy patients and matched control subjects (from Bratislava). The XRF-system consisted of a radionuclide source109Cd, a semiconductor Si/Li detector connected to a multichannel analyzer.

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Abstract  

The preparation of99mTc-Sn-DOTA,99mTc-Sn-DDDTA and99mTc-Sn-DHDTA is described. The labelling efficiency of all samples was checked by paper chromatography, thin layer chromatography and paper electrophoresis. Preliminary results of the biodistribution studies performed in white rats are given.

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Abstract  

In this paper, the labeling characteristics and biological behavior of five aminopolycarboxylic acid derivatives have been studied: N-(phosphonomethyl) nitrilodiacetic acid (99mTc-MPIDA), N,N-(diphosphono) aminoacetic acid (99mTc-GDP), N-(2-carbamoylethyl) nitrilodiacetic acid (99mTc-KEIDA), N-(2,3-dihydroxypropyl) nitrilodiacetic acid (99mTc-DPKA), 2-[N-(2-hydroxyethyl)-N-carboxymethyl] aminopropanoic acid (99mTc-EAPA).

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Abstract  

Biodistribution of EDTA derivatives99mTc-Sn-DOTA, DDDTA, DHDTA /1,2-dinitriloalkane-tetraacetic acids/ individually and bound to liposome in rats is described. The obtained results are compared with99mTc-Sn-EDTA.

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