Determination of selenium contents in the leaf,bark,trunk and root of Eucalyptus by hydride generation-atomic fluorescence spectrometry
The trace selenium contents in the leaf, bark, trunk and root of eucalyptus were determined respectively by hydride generation-atomic fluorescence spectrometry(IIG-AFS) with potassium lerricyanide as masking agent,1. 5% KBII4 as reducing agent, 10% hydrochloric acid as fluid carrier, after the samples were digested with microwave. The results were verified with spiked standards and detection limit. Potassium ferricyanide,poly epoxy succinic acid(PE-SA) ,tartaric acid, citric acid and ethylenediamine were investigated for their masking effects on 11 kinds of common interference elements, which would provide some reference information for the selection of an appropriate masking a-gent in selenium determination.
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