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Determination of selenium concentrations in plants (Taraxum officinale) and biological samples with ICP-MS (Eastern Croatia)

The essential trace element, selenium (Se), has multiple biological activities, which depend on the level of Se intake. Recent studies provide some evidence that adequate selenium status may reduce the risk of some cancers, viral infections, male infertilit, cardiovascular disease and mood disorders. Previous research on Se in eastern Croatia revealed the occurrence of selenium deficit disorders in domestic animals and deficient concentrations in soil and grains. The objective of this work was to determine the Se concentration in Dandelion (Taraxum officinale) samples and biological materials (urine, serum and hair) the 500 inhabitants of five towns and three villages in eastern Croatia. No significant difference in concentrations between all samples was observed. Typical levels found in dandelion, urine, serum and hair were 45, 8 µg kg-1, 34, 6 µg L-1, 83, 5 µg L-1 and 1, 4 µg g- 1, respectively. The most of values correspond to the lower or higher end of the reference literature data, while for hair a few values are about two orders of magnitude higher than here presently results.

Selenium, determination, plants, biological samples, ICP-MS. Eastern Croatia

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