Naslov
Synergy of sequential injection analysis and molecular recognition technology for low-level 90Sr activity determination

Autori
Coha, Ivana ; Dulanská, Silvia ; Grahek, Željko ; Štofaníková, Michaela ; Tucaković, Ivana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
18th Radiochemical Conference, in Czech Chemical Society Symposium Series Symposium Series Vol 16, No 2 / - , 2018, 121-121

Skup
18th Radiochemical Conference (RadChem 2018)

Mjesto i datum
Mariánské Lázně, Češka Republika, 13.05.2018. - 18.05.2018

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Recenziran

Ključne riječi
strontium ; separation ; SuperLig 620

Sažetak
The routine monitoring, as a part of radiation protection from radioactive materials released into the environment, is established in many countries worldwide. A radionuclide of particular interest is Sr-90, which is, due to its long half-life, one of the most hazardous radionuclide. As it is pure beta emitter, its isolation prior determination is necessary. In recent years, materials based on solid phase extraction are used as a replacement for purification steps of conventional methods, which are mostly time consuming and labor intensive. The introduction of such materials provide partial automatization and miniaturization of separation procedures. Theproductsbasedonmolecularrecognitiontechnology , AnaLigSr-01 and SuperLig 620, provided by IBC Technologies, more known as materials encased in EmporeTM Strontium RAD Disks, are promising materials, since it is possible in short time to separate Sr2+ from many interfering cations, which are present in much higher concentrations, such as Na+, K+, Mg2+, Ca2+ etc. The drawback of these materials is that they, besides Sr2+, sorbPb2+ andBa2+. Thesecationsmayinterfereduring measurements on available instrumentation. Therefore, within this research an extensive study is done to effectively separate strontium from these elements. The goal is to develop rapid and easy to handle method for precise determination of strontium, with detection limits below 50 mBq/L. The final results show, that by changing pH ormolarityofcomplexingagents, purefractionsofPb2+, Sr2+ or Ba2+ can be obtained.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Interdisciplinarne prirodne znanosti

POVEZANOST RADA