The use of definitive methods based on radiochemical neutron activation analysis for the determination of selenium and arsenic in materials used in proficiency testing

• Autorzy: Chajduk E. , Polkowska-Motrenko H. , Dybczyński R. S.
• Konferencja: International Conference on Recent Developments and Applications of Nuclear Technologies (15-17.09 2008 ; Białowieża, Poland)
• Języki publikacji: EN

Abstrakty

EN

This article describes the use of two definitive methods for the determination of Se and As traces in biological materials intended for proficiency testing. Radiochemical neutron activation analysis (RNAA) definitive methods are based on reactor neutron activation with a very selective and quantitative post-irradiation separation of the indicator radionuclide by column chromatography, followed by γ-ray spectrometric measurement. Each of these methods has detection limit of the order of ng·g–1 or better, and yields accurate results. The expanded standard uncertainty for both methods is ca. 4%. Definitive RNAA methods were used for establishing assigned values for Se and As in materials employed in proficiency testing of “Plants” series.

Słowa kluczowe

EN

selenium; arsenic; RNAA definitive methods; proficiency testing

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2008
• Tom: Vol. 53, suppl. 2
• Strony: 49--54
• Opis fizyczny: Bibliogr. 25 poz., rys.

Twórcy

autor

Chajduk E.

• Department of Analytical Chemistry, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: [phone], Fax: [phone]

autor

Polkowska-Motrenko H.

• Department of Analytical Chemistry, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: [phone], Fax: [phone]

autor

Dybczyński R. S.

• Department of Analytical Chemistry, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: [phone], Fax: [phone]

Bibliografia

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