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Stepanov, А. V.; Nikitina, S.A.; Karasev, V. T.; Belyaev, B.N.; Stepanov, D. A.; Pevtsova, E. V.; Bogoroditskii, A. B.

doi:10.1023/a:1019631615186

Cited by 4 publications

(3 citation statements)

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“…This version is virtually identical to the IRSP method described by Stepanov et al [2,3]. A distinctive feature of this procedure is that the calibration solutions, like the test solution, contain U.…”

Section: Version a Analysis Of Pu In The Presence Of U Based On Thementioning

confidence: 96%

“…We used the previously designed analyzer [2,3] based on an MDR-23 monochromator cutting the analytical absorption band; the reference band at 720 nm, 4 35 nm wide, is cut by an interference filter. The background is measured when the light source, an incandescence lamp, is completely obscured.…”

Section: Instrumentationmentioning

confidence: 99%

“…We suggested previously [3] to determine Pu in mixed uranium3plutonium solutions by the IRSP method with solutions of Pu taken separately (uranium-free) as calibration solutions. The difference in the volume densities for the calibration solutions and the analyzed solution containing U was taken into account by introducing a correction into calculation of the weight fraction of Pu.…”

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confidence: 99%

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10.1007/s11137-008-1013-4

2000

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Two versions of a spectrophotometric method with internal referencing were developed for determination of the Pu content at U : Pu ratios of 40 : 1, 20 : 1, and 1 : 1. Precision determination of Pu(VI) with a relative root-mean-square deviation (RRMSD) < 0.2% from intrinsic absorption is possible without separation of U with the use of calibration solutions containing U. Under the same conditions, microgram amounts of Pu(IV) in the presence of U (U : Pu = 20 : 1) can be determined with an organic reagent, carboxyarsenazo, with RRMSD of 0.33 0.5%. Both versions were successfully applied to analysis of large size dried (LSD) spikes containing 40 mg of U and 2 mg of Pu. All the measurements were carried out on a two-channel spectrophotometric analyzer.

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Section: Version a Analysis Of Pu In The Presence Of U Based On Thementioning

confidence: 96%

Section: Instrumentationmentioning

confidence: 99%

mentioning

confidence: 99%

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