Chemija / Chemistry
 ISSN 0235-7216 ISSN 2424-4538 (online) |
2008 m. Nr. 1 Features of plant material pre-treatment for
selenium determination by atomic absorption and fluorimetric methods
The features of plant samples mineralization by the method of autoclave decomposition under pressure were investigated. The optimal parameters of the procedure of plant material pre-treatment for selenium determination – temperature, time, oxidizing mixture, sample mass, deoxidizing agent – were established. The accuracy of selenium estimation related to the sample preparation varies from 9 to 4%. The possibility to apply the method of autoclave decomposition for the subsequent atomic absorption or fluorimetric determination of selenium in plant material Keywords: selenium analysis, plant sample pre-treatment, FI–HG–AAS, fluorimetry |
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