Ion exchange, extraction, separation and radiochemical determination of neptunium-237 in plutonium-238

Bubuknak, J.; Lew, M. S.; Matlack, G.M.

doi:10.1016/s0003-2670(01)85491-x

Search citation statements

Order By: Relevance

Paper Sections

Select...

Plutonium Assay1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1972

2015

Publication Types

Select...

Other2

Article1

Relationship

Self Cite0

Independent3

Authors

Journals

Cited by 3 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Neptunium is measured routinely by alpha-counting the M7 Np after separation from ^Pu by a double separation procedure that employs both ion exchange and solvent-extraction techniques. 39 A cation-exchange resin column is used to absorb both Np(V) and Pu(lll) from a rtixture of hydrobromic acid and bromine. The neptunium is selectively eluted with dilute hydrochloric acid.…”

Section: Plutonium Assaymentioning

confidence: 99%

PREPARATION AND EVALUATION OF MEDICAL-GRADE $sup 238$Pu FUELS, JULY 1, 1967- -JUNE 30, 1971.

Mullins¹

1972

View full text Add to dashboard Cite

Section: Plutonium Assaymentioning

confidence: 99%

PREPARATION AND EVALUATION OF MEDICAL-GRADE $sup 238$Pu FUELS, JULY 1, 1967- -JUNE 30, 1971.

Mullins¹

1972

View full text Add to dashboard Cite

“…On the other hand, investigations of the chemical properties of Np using 237 Np are often complicated by radioactive ingrowth of its immediate radionuclide decay product,233 Pa, and current separations technologies are cumbersome for routine analyses 79. Due to a relatively short half-life, the observed radioactivity of 233 Pa increases rapidly toward secular equilibrium (steady state) with 237 Np, which is undesirable for many applications.…”

mentioning

confidence: 99%

Radiochemical analysis of protactinium speciation

Knight¹

View full text Add to dashboard Cite

show abstract

A chromatographic separation of neptunium and protactinium using 1-octanol impregnated onto a solid phase support

Knight

Nelson

Eitrheim

et al. 2015

J Radioanal Nucl Chem

View full text Add to dashboard Cite

We have developed a new chromatographic method to efficiently separate and isolate neptunium (Np) and protactinium (Pa), based on the selective extraction of protactinium by primary alcohols. The effectiveness of the new technology is demonstrated by efficient separation of 233 Pa from parent radionuclide 237 Np, using a hydrochloric acid mobile-phase medium. Our new approach reproducibly isolated 233 Pa tracer with a yield of 99 ± 1 % (n = 3; radiochemical purity 100 %) and enabled chemical recovery of 237 Np parent material of 92 ± 3 % (radiochemical [99 %) for future 233 Pa tracer preparations. Compared to previous methods, the new approach reduces radioactive inorganic and organic waste; simplifies the separation process by eliminating cumbersome liquidliquid extractions; and allows isolation of radiochemicallypure fractions in less than 1 h. Graphical Abstract 50 150 250 350 Energy, keV 237 Np 9 M HCl 233 Pa 1 M HCl 30 mL 60 mL 0 mL γ: 311 keV α: 4.8 MeV Energy,

show abstract

Ion exchange, extraction, separation and radiochemical determination of neptunium-237 in plutonium-238

Cited by 3 publications

References 4 publications

PREPARATION AND EVALUATION OF MEDICAL-GRADE $sup 238$Pu FUELS, JULY 1, 1967- -JUNE 30, 1971.

PREPARATION AND EVALUATION OF MEDICAL-GRADE $sup 238$Pu FUELS, JULY 1, 1967- -JUNE 30, 1971.

Radiochemical analysis of protactinium speciation

A chromatographic separation of neptunium and protactinium using 1-octanol impregnated onto a solid phase support

Contact Info

Product

Resources

About