Dažu metālisko elementu satura variācijas saulespuķu (Helianthus annuus) sēklās
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Latvijas Universitāte
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lav
Abstract
Bakalaura darba ietvaros tika ievāktas, mineralizētas un analizētas saulespuķu (Helianthus annuus) sēklas. Analizēti tika 7 paraugi no 3 izcelsmes valstīm: Latvijas, divi paraugi no Bulgārijas un četri paraugi no Ukrainas. Ar liesmas atomabsorbcijas metodi noteica dzelzs, vara un cinka saturu saulespuķu sēklu paraugos, citu elementu noteikšanā izmantoja ICP-MS noteikšanas metodi. Iegūtie rezultāti tika apstrādāti, izvērtēti un savstarpēji salīdzināti.
The purpose of this bachelor thesis was to collect, prepare and analyse sunflower (Helianthus annuus) seeds. Seven samples, from 3 different countries: Latvia, two samples from Bulgaria and four samples from Ukraine, were analyzed. Iron, cooper and zinc contents was determined by FAAS. For the determination of other trace metals, the ICP-MS method was used. The obtained results were processed, evaluated and compared.
The purpose of this bachelor thesis was to collect, prepare and analyse sunflower (Helianthus annuus) seeds. Seven samples, from 3 different countries: Latvia, two samples from Bulgaria and four samples from Ukraine, were analyzed. Iron, cooper and zinc contents was determined by FAAS. For the determination of other trace metals, the ICP-MS method was used. The obtained results were processed, evaluated and compared.