Evaluation of Speciation Technology - OECD Nuclear Energy Agency

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TRACE CONCENTRATION SPECIATION (
Advantages On-line CE-MALDI/TOF MS is possible, low sample volume (µL to nano L). Disadvantages Few applications for inorganic speciation up to now [8], but no experience on actinide speciation. • Destructive method. • Further development needed. Future For actinides speciation further development necessary. GC/HPLC separation methods GC can be applied for iodine-129 speciation with kinetic or MS detection methods [9]. HPLC and Ion Chromatography (IC): with modified detection methods, for example radiometrical or MS detection used as speciation method. Advantages • Small amount of samples. • Simple sample pre-treatment. Disadvantages Future development still needed for radioactive metals application. LASER spectrometry Photothermal spectroscopy Photon-induced thermal process is detected by various sensoric methods for spectroscopy, which is equivalent to UV-VIS absorption spectroscopy but with very low sensitivity (A = ε × c = 10 -6 cm -1 is attainable). Speciation of oxidation and complexation states is possible for all 5f elements. Photon absorption of solvent (e.g. of water) is the limitation for the sensitivity but can be compensated to some extents by a dual channel set-up. 360
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Nuclear Science Evaluation of Speci
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ORGANISATION FOR ECONOMIC CO-OPERAT
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OPENING ADDRESS - Satoshi Sakurai,
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SESSION D Methods for Redox Speciat
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Part D: Methods for Redox Speciatio
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EXECUTIVE SUMMARY The Workshop on E
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Speciation methods evaluated in the
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SPECIATION IMPERATIVES FOR WASTE MA
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matrices poses difficult challenges
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Table 1 lists some of the more comm
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In the complex biosphere there are
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SESSION A Methods for Trace Concent
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Introduction Experimental tests of
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complexes. As a result, fulvic acid
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possibility of selective extraction
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Table 1. Data on radiochemical anal
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Figure 1. Flowsheet of isolation of
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NANOSCOPIC SPECIATION OF AQUATIC AC
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A number of spectroscopic methods h
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Figure 4. LPAS and UV-Vis spectra o
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composite and hence it is called br
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[11] J.V. Beitz,, J.P. Hessler, “
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SPECIATION FROM PHOTON TO ION DETEC
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technique for speciation (i.e. the
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Figure 2. TRLIF spectra and lifetim
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Figure 5. ES-MS of uranium hydroxo
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[11] “Dual use of Micellar Enhanc
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Introduction The solution chemistry
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of the metal sorbed was less than 9
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For the hydrated ions without any c
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those of sorbed Cm(III) and Eu(III)
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Conclusion The luminescence propert
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[34] Graffeo, A.J., Bear, J.L., J.
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Figure 1. Luminescence decay consta
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Figure 3. Plot of the inner-sphere
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Figure 5. Distribution coefficients
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Figure 7. Dissolved fraction of Eu(
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SESSION C Methods for Empirical For
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Introduction The application of X-r
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The mica was left in the solution f
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That the GIXAS spectra of the Hf(IV
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[7] Frauenfelder, H., Steffen, R.M.
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Figure 3. Grazing incidence XAFS be
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Figure 7. Hf L3 edge GIXAFS spectra
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Introduction Nuclear magnetic reson
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ecause there is no longer an anisot
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20-30 MHz is observed for slowly tu
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[12] P. Caravan, J.J. Ellison, T.J.
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Figure 4. NMRD curves of free Gd 3+
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SESSION D Methods for Redox Speciat
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What is meant by speciation In the
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• It is non-invasive and non-pert
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Table 1. Selected absorption bands
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Figure 3. Shift in absorption edge
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Introduction Energy production reli
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then Pu in higher oxidation states
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• Reliability and reproducibility
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Conclusion Currently existing techn
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Table 1. Systems studies; the metho
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SESSION E Predictive Approach to Sp
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Introduction Thermodynamic data pro
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secondary mineral formation in immo
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Additionally, if a phase is impure,
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REFERENCES [1] T. Murakami, T. Ohnu
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Figure 1. (a) Backscattered electro
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CHEMICAL ANALOGY IN THE CASE OF HYD
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4f-electrons of the lanthanides, an
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Since water molecules are substitut
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REFERENCES [1] D. Rai, J.L. Swanson
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Table 3. Effective charges of actin
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Figure 3. Atomic number dependence
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POSTER SESSION Part A: Methods for
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Introduction Several complementary
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migration. Consequently, only one p
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Some solutions are under test, such
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DEVELOPMENT PROGRAMME OF ANALYTICAL
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Evaluation of the footprints in the
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REFERENCES [1] B. Pellaud, “IAEA
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MATRIX-ASSISTED LASER DESORPTION/IO
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Preparation of the samples There ar
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Acknowledgement SHIMADZU Handelsges
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Figure 3. Clusters of uranium(VI) o
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ASSOCIATION OF ACTINIDES WITH DISSO
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carried out by the ultra-filters wi
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REFERENCES [1] N.A. Marley, J.S. Ga
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Figure 3. Molecular size distributi
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SPECIATION OF “HOT PARTICLE” BY
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The clear results were obtained reg
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in some tens volt per centimetre an
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APPLICATION OF X-RAY AND LOW ENERGY
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of 12.5 keV to 23.0 keV. The coeffi
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[7] R.C. Gatti, H. Nitsche, et al.,
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Figure 1. Calibration results for 2
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Introduction HQ was used as the ext
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Iron(III) speciation can be achieve
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Figure 1. Solubility of HMOnQ in 4
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SPECIATION OF ENVIRONMENTAL RADIONU
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precipitate (humic acid fraction) w
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Acknowledgements This research has
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Figure 1. Speciation procedure A: e
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POSTER SESSION Part B: Methods for
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Introduction The possibility of dis
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fluorescence decay rate of the diff
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Table 1. Spectroscopic characterist
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Figure 3. Peak deconvolution of a m
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SPECIATION ANALYSIS ON EU(III) IN A
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ACTINYL(VI) SPECIATION IN CONCENTRA
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Preparation and characterisation of
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Characterisation of solid AnO2CO3 T
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Solubility data of uranyl in carbon
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CHARACTERISATION OF OXIDE FILMS FOR
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Figure 1. Relative concentration of
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Figure 4. Schematic structure of ox
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Introduction The actinide elements
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5LI-(Me-3,2-HOPO (X=CH2 5LIO-(Me-3,
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Uranium sequestering agents Uranium
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REFERENCES [1] (a) K.N. Raymond, in
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SPECIATION OF PU(IV) COMPLEXES WITH
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will have an absorption spectrum th
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As shown in our earlier work, Eq (1
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Figure 1. Plots of log Ka-2 D(I) vs
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As demonstrated above, laser induce
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DIRECT SPECTROSCOPIC SPECIATION OF
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4 Energy relative to Pu(IV) 3 2 1 0
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Introduction In R&D on the “back
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distribution ratios of Am are not s
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Figure 1. The crystal structure of
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Table 1. Selected geometrical param
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Introduction The two important oxid
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to these two minerals. Ferrihydrite
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REFERENCES [1] J.K. Osmond and M. I
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ELECTROANALYTICAL DATA ON URANIUM,
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- system of Eq. (2), which is measu
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The following consideration indicat
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Figure 1. Coulopotentiograms for U,
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SEPARATION AND DETERMINATION OF URA
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HPEC procedure An aqueous solution
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REFERENCES [1] T. Braun, G. Ghersin
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Figure 3. Effect of pH on the reten
Page 309 and 310: Introduction Voltammetry or polarog
Page 311 and 312: voltammograms in Figures 2(a)-2(c)
Page 313 and 314: Figure 2. Voltammograms for U(VI) s
Page 315 and 316: Introduction One of the most unique
Page 317 and 318: The ∆V1/2 of anodic and cathodic
Page 319 and 320: Table 1. Half wave potential for ac
Page 322 and 323: REDOX SPECIATION OF NP IN TBP EXTRA
Page 324 and 325: Analyser). Nitric acid concentratio
Page 326 and 327: papers dealing with Np oxidation in
Page 328 and 329: Figure 2. Np distribution coefficie
Page 330 and 331: Figure 6. Np distribution coefficie
Page 332: POSTER SESSION Part E: Predictive A
Page 335 and 336: Introduction In the back-end of the
Page 337 and 338: CO2 in the solution and were calcul
Page 339 and 340: Table 1. Thermochemical cycles for
Page 341 and 342: Introduction The essence of data pr
Page 343 and 344: (sensitivity analysis). In order to
Page 345 and 346: [G15] = LOG(SUM(D15:F15)) (25) Here
Page 347 and 348: Table 2. Spreadsheet arrangement of
Page 349 and 350: Introduction Scientific studies aim
Page 351 and 352: Figure 2. Comparison of non-linear
Page 353 and 354: The analysis shows a probability of
Page 355 and 356: Internationally accepted QA/QC stan
Page 358: SUBGROUP REPORTS 357
Page 363 and 364: • Colloidal state: - Membrane fil
Page 365 and 366: [10] P.A. Bertrand, G.R. Choppin,
Page 368 and 369: METHODS FOR MACRO CONCENTRATION SPE
Page 370 and 371: Advantages are a complete structure
Page 372 and 373: X-ray photoelectron spectroscopy: X
Page 374 and 375: The advantages are: • A multi-ele
Page 376 and 377: [12] S. Tsutsui, M. Nakada, M. Saek
Page 378: [44] H. Capdevila, P. Vitorge, E. G
Page 381 and 382: Molecular structure Molecular struc
Page 383 and 384: The detection limit of these method
Page 385 and 386: By analysing the chemical shifts an
Page 387 and 388: Current Chemistry. No. 157, K. Yosh
Page 390 and 391: AN OVERVIEW OF ACTINIDE REDOX SPECI
Page 392 and 393: Related to this technique is comple
Page 394 and 395: Main advantages of the electrochemi
Page 396 and 397: Extraction method with use of PMBP,
Page 398 and 399: [37] W. Runde, M.P. Neu, S.D. Conra
Page 400 and 401: Reagent BaSO4 Silica gel CaCO3 Tabl
Page 402: Figure 1. X-ray absorption edge ene
Page 405 and 406: The following sections address the
Page 407 and 408: priority and are supplemented by do
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has been addressed, albeit somewhat
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Table 1: Comparison of •G° f for
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The full range of environmental par
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[21] P.L. Brown, R.N. Sylva, “Uni
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RECOMMENDATION It was recommended t
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There should be allowance for datab
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Annex 1 LIST OF PARTICIPANTS BELGIU
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ARISAKA, Makoto Tel: +81 29 282 549
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NAGAISHI, Ryuji Tel: +81 29 282 549
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YASUOKA, Hiroshi Tel: +81 29 282 50
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RAI, Dhanpat Tel: +1 509 373 5988 P
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Participants of the Workshop on Eva
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ORDER FORM OECD Nuclear Energy Agen
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