Uranium Isotope Investigations by Atomic Absorption.

Goleb, Joseph A.

doi:10.1021/ac60205a002

Cited by 33 publications

(7 citation statements)

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“…A variety of analytical and spectroscopic techniques [1][2][3][4][5][6][7][8] have been used for uranium isotope ratio measurements. The standard technique for determining isotopic compositions of actinide elements is thermo-ionization mass spectrometry (TIM S).…”

Section: Introductionmentioning

confidence: 99%

Isotopic Measurements of Uranium Using Inductively Coupled Plasma Cavity Ringdown Spectroscopy

et al. 2003

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Inductively coupled plasma cavity ringdown spectroscopy (ICP-CRDS) is applied to isotopic measurements of uranium. We have successfully obtained the isotopic-resolved spectra of uranium at three different atomic/ionic transition lines, 286.57, 358.49, and 409.01 nm. Of the three lines, the largest isotope shift of approximately 9 pm was measured at the 286.57 ionic line. Isotopic-resolved spectra were recorded in ratio of 1:1 (235U/238U, 2.5 micrograms/mL) and at the natural abundance ratio of 0.714% (235U/238U, 1.25 micrograms/mL 235U). The smallest measurable isotope shift of approximately 3 pm was determined for the 409.01 nm ion spectral line. Detection limits (DL) were obtained under optimized ICP operating conditions to be in the range of 70-150 ng/mL, except for the 238U component of the 286.57 nm line (300 ng/mL). This latter result was determined to be due to a strong, previously unreported, absorption interference from the argon plasma. The 235U isotope component (DL 70 ng/mL) was found to be unaffected. This work demonstrates the applicability of ICP-CRDS for uranium isotopic measurements. The potential of development of a field-deployable, on-line uranium isotope monitor using plasma-CRDS is discussed.

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Section: Introductionmentioning

confidence: 99%

Isotopic Measurements of Uranium Using Inductively Coupled Plasma Cavity Ringdown Spectroscopy

et al. 2003

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“…483, 484, 492, 498, 499, 507, 508, 509, 510, 511, 514, 516, 521, 523, 533, 535, 536, 537, 543, 544, 545, 546, 547, 563, 564, 567, 568, 569, 573, 583, 587, 588, 596, 599, 606, 620, 621, 622, 623, 624, 625, 651, 652, 665, 666, 676, 677, 681, 682, 687, 697, 698, 701, 704, 711, 717, 719, 720, 728, 737, 738, 739, 747, 750, 751, 756, 759, 764, 771, 774, 778, 780, 781, 782, 783, 796, 805, 806, 808, 809, 811, 812, 814, 819, 820, 821, 822, 823, 824, 825, 826, 828, 834, 835, 837, 838, 839, 840, 841, 842, 844, 853, 854, 856, 868, 869, 870, 873, 877, 899, 901, 902, 903, 909, 915, 918, 919, 920, 923, 925, 926, 948, 971, 972, 973, 977, 979, 980, 981, 982, 985, 1005, 1015, 1016, 1017, 1018, 1035, 1044, 1049, 1050, 1051, 1052, 1053, 1068, 1075, 1077, 1082, 1094, 1095, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1154, 1169 Flame reactions 2,10,15,16,17,18,19,20,21,22,49,50,51,55,59,60,79,80,82,91,92,93,99,110,113,114,120,121,122,124,125,128,129,131,132,133,139,140,142,143,147,149,153,154,173,177,180,183,186,201,202,…”

Section: Subject Indexmentioning

confidence: 99%

Bibliography on flame spectroscopy analytical applications 1800-1966/

Mavrodineanu¹

1967

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“…These measurements are applicable either for light elements, such as Li and B, or for heavy elements, such as Pb, Hg or U, because these elements have a signicant isotopic spectral line splitting. [21][22][23][24][25][26][27] The isotopic shi of 6 Li and 7 Li for the main resonance line at 670.8 nm is 0.015 nm. 20 This isotopic splitting has been used for isotopic analysis of lithium by using AAS and LEAFS methods.…”

Section: Introductionmentioning

confidence: 99%

“…[21][22][23][24][25][26][27] The isotopic shi of 6 Li and 7 Li for the main resonance line at 670.8 nm is 0.015 nm. These measurements are applicable either for light elements, such as Li and B, or for heavy elements, such as Pb, Hg or U, because these elements have a signicant isotopic spectral line splitting.…”

Section: Introductionmentioning

confidence: 99%

Determination of⁶Li and⁷Li abundances by inductively coupled plasma-optical emission spectrometry combined with derivative spectroscopy, multivariate curve resolution and multivariate calibration methods

Zolfonoun

2015

J. Anal. At. Spectrom.

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abundances by inductively coupled plasma-optical emission spectrometry combined with derivative spectroscopy, multivariate curve resolution and multivariate calibration methods Ehsan ZolfonounA rapid and reliable method for the determination of 6 Li and 7 Li abundances by inductively coupled plasmaoptical emission spectrometry coupled with derivative spectroscopy, multivariate curve resolution and multivariate calibration methods is reported. By evaluation of emission lines of lithium, it was found that the resonance line at 670.784 nm provides the greatest isotopic splitting between 6 Li and 7 Li. After recording the emission spectra in the range of 670.712-670.898, the quantification of 6 Li and 7 Li abundances was performed with the aid of derivative spectroscopy, MCR-ALS and PLS methods. The performance of the proposed methods was tested by the determination of 6 Li and 7 Li abundances in synthetic mixtures. The obtained results showed that the proposed approach is suitable for the determination of lithium isotopes.

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Uranium Isotope Investigations by Atomic Absorption.

Cited by 33 publications

References 0 publications

Isotopic Measurements of Uranium Using Inductively Coupled Plasma Cavity Ringdown Spectroscopy

Isotopic Measurements of Uranium Using Inductively Coupled Plasma Cavity Ringdown Spectroscopy

Bibliography on flame spectroscopy analytical applications 1800-1966/

Determination of⁶Li and⁷Li abundances by inductively coupled plasma-optical emission spectrometry combined with derivative spectroscopy, multivariate curve resolution and multivariate calibration methods

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Uranium Isotope Investigations by Atomic Absorption.

Cited by 33 publications

References 0 publications

Isotopic Measurements of Uranium Using Inductively Coupled Plasma Cavity Ringdown Spectroscopy

Isotopic Measurements of Uranium Using Inductively Coupled Plasma Cavity Ringdown Spectroscopy

Bibliography on flame spectroscopy analytical applications 1800-1966/

Determination of6Li and7Li abundances by inductively coupled plasma-optical emission spectrometry combined with derivative spectroscopy, multivariate curve resolution and multivariate calibration methods

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Determination of⁶Li and⁷Li abundances by inductively coupled plasma-optical emission spectrometry combined with derivative spectroscopy, multivariate curve resolution and multivariate calibration methods