Abstract
An electrothermal atomic absorption spectrometric method for the determination of selenium in shellfish tissue at the microgram per gram level, following digestion of the sample in a continuous system including a microwave oven, is proposed. In the presence of palladium, the pyrolysis temperature for selenium can be raised to 1100 °C, and the signal is increased to a greater extent than with other reported chemical modifiers. The proposed method allows the determination of selenium in the range 25–250 µg l–1(2.5–25 µg l–1 Se after 10-fold dilution in the flow manifold). The precision achieved, expressed as the relative standard deviation, was 6.8% for within-run assays and 12.5% for between-run assays. The flow system is characterized by its simplicity (no special device is needed to process evolved gases during sample digestion). Samples can be introduced into the system as slurries made from unlyophilised fresh shellfish tissue (there is no difference between the mean results for unlyophilised and lyophilised samples.)
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
