Tellurium determination by three modes of instrumental neutron activation analysis in aerosol filters and trap solutions for the simulation of a severe nuclear accident

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F20%3A00534030" target="_blank" >RIV/61389005:_____/20:00534030 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.microc.2020.105139" target="_blank" >https://doi.org/10.1016/j.microc.2020.105139</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.microc.2020.105139" target="_blank" >10.1016/j.microc.2020.105139</a>

Result language

angličtina

Original language name

Tellurium determination by three modes of instrumental neutron activation analysis in aerosol filters and trap solutions for the simulation of a severe nuclear accident

Original language description

Tellurium belongs to the elements not frequently determined by neutron activation analysis (NAA) or other analytical methods. We present results of a new methodological study using three independent modes of instrumental NAA (INAA) using the Te-123m, Te-131 and T-131 radionuclides. We compare the results obtained in terms of accuracy, precision and limits of detection (LOD). We utilized the INAA procedures tested for the tellurium determination in aerosol filters and trap solutions in a model experiment aimed at reducing the knowledge gap concerning the behaviour of Te-132, a radiologically significant fission product, which constitutes a considerable health risk towards the public in case of its release in a severe nuclear power plant accident. We found that the nuclear reaction Te-130(n,gamma)Te-131 and gamma-ray spectrometric measurement of I-131, a descendant of Te-131, is the most sensitive way of Te determination by INAA providing as low LOD values as 0.15 mu g of Te in the Teflon aerosol filters and 0.22 mu g mL(-1) in the 0.1 M NaOH trap solutions. The three independent INAA modes allowed employing the self-verification principle of INAA for increasing the trustworthiness of our results. Finally, we also point to the indispensable role of the non-destructive feature of INAA for assay of samples, such as Teflon aerosol filters, that are difficult to be analysed by other analytical methods requiring complete sample destruction without analyte losses.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10406 - Analytical chemistry

Project

<a href="/en/project/LM2015056" target="_blank" >LM2015056: Center of Accelerators and Nuclear Analytical Methods</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Microchemical Journal

ISSN

0026-265X

e-ISSN

—

Volume of the periodical

158

Issue of the periodical within the volume

NOV

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

105139

UT code for WoS article

000573292100005

EID of the result in the Scopus database

2-s2.0-85086397021