Determination of total content and isotopic compositions of plutonium and uranium in environmental samples for safeguards purposes by ICP-QMS

Godoy, Maria Luiza D.P.; Godoy, José Marcus; Roldão, Luiz Alfredo; Tauhata, Luiz

doi:10.1016/j.jenvrad.2009.04.012

Cited by 29 publications

(15 citation statements)

References 27 publications

(40 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For each batch, mass bias correction factors were determined using NIST-SRM 981 and applying NIST-SRM 982 as a validation sample. The mass bias correction factor (β) uncertainty and the combined uncertainty for the calculated atom ratio were derived as proposed by Godoy et al 15 Mass bias was corrected by applying equation 1, where β was determined from NIST-SRM 981 analysis and equation 2:…”

Section: Lead Isotope Ratio Determinationmentioning

confidence: 99%

Differentiation Among Brazilian Wine Regions Based on Lead Isotopic Data

Almeida¹,

Almeida²,

Godoy³

et al. 2015

Journal of the Brazilian Chemical Society

View full text Add to dashboard Cite

For the first time, the isotope ratio of lead is reported in Brazilian red wines. The lead concentration and the ratios of Pb ratio data demonstrated that the wines of the Southern region have radiogenic features, whereas the wines of the Northeastern region ranged from slightly to very radiogenic. These results indicated that the lead concentrations in the wines from these Brazilian regions are influenced both by agricultural practices and by natural occurrences. Isotope ratios allowed for differentiation among the wines produced in these two important wine producing areas in Brazil and are emerging as a promising tool in the study of the geographical origin of Brazilian wines.

show abstract

Section: Lead Isotope Ratio Determinationmentioning

confidence: 99%

Differentiation Among Brazilian Wine Regions Based on Lead Isotopic Data

Almeida¹,

Almeida²,

Godoy³

et al. 2015

Journal of the Brazilian Chemical Society

View full text Add to dashboard Cite

show abstract

“…Accurate measurements for uranium isotope and concentration are necessary in the nuclear field [1][2][3]. Knowing the isotope composition and uranium concentration is also of prime interest for safeguards and forensics purposes: the 235 U isotope abundance indicates the enrichment level of the nuclear material, the 234 U isotope abundance determination provides information on the material origin and finally, the 236 U isotope is a marker of uranium origin (natural, fallout from nuclear test or accident) [1,2,4,5].…”

Section: Introductionmentioning

confidence: 99%

Development and comparison of high accuracy thermal ionization mass spectrometry methods for uranium isotope ratios determination in nuclear fuel

Quemet

Ruas

Dalier

et al. 2019

International Journal of Mass Spectrometry

View full text Add to dashboard Cite

This study presents the development and the comparison of high accuracy methods for uranium isotope determination by thermal ionization mass spectrometry. Two methods for uranium minor isotope ratio determination were compared in term of accuracy, analysable quantity, analysis time and versatility: the total evaporation and the classical method with multi-dynamic sequences. The mathematical correction of the abundance sensitivity and the detector calibration within the classical method helps decreasing the uncertainties and the biases compared to the total evaporation method. This comparative study was conducted within the framework of the "2017 Nuclear Material Round Robin" participation organized by the International Atomic Energy Agency.

show abstract

“…The uncertainty in the mass bias correction factor (β) and the uncertainty in the calculated atom ratio were derived as proposed by Godoy et al 21 Although the mass bias correction was applied only during sample analysis and accuracy testing and not during the first method development steps, as ethanol affects the tests, a larger deviation from the certified value was applied as a decision criteria.…”

Section: Isotopic Ratio Determinationmentioning

confidence: 99%

Boron Isotopic Ratio in Brazilian Red Wines: a Potential Tool for Origin and Quality Studies?

Almeida¹,

Almeida²,

Saint’Pierre³

et al. 2017

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

For the first time, the boron isotopic ratio is reported for Brazilian red wines. The boron concentration, 11 B/ 10 B isotopic ratio and δ 11 B were determined in 89 red wines produced in Campanha Gaúcha, Serra Gaúcha ( ). The obtained 11 B/ 10 B ratios were quite different from those observed in the literature. The ratios were quite similar among the Southern Brazilian wine producing areas, but a large difference was observed when compared with the Northeastern wines, allowing for the differentiation between these two important Brazilian wine regions. The results have also shown that is possible, based on the boron isotopic ratio, to differentiate the Brazilian red wines from Chilean, Italian and Portuguese red wine.

show abstract

Determination of total content and isotopic compositions of plutonium and uranium in environmental samples for safeguards purposes by ICP-QMS

Cited by 29 publications

References 27 publications

Differentiation Among Brazilian Wine Regions Based on Lead Isotopic Data

Differentiation Among Brazilian Wine Regions Based on Lead Isotopic Data

Development and comparison of high accuracy thermal ionization mass spectrometry methods for uranium isotope ratios determination in nuclear fuel

Boron Isotopic Ratio in Brazilian Red Wines: a Potential Tool for Origin and Quality Studies?

Contact Info

Product

Resources

About