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1

Calibrated sulfur isotope abundance ratios of three IAEA sulfur isotope reference materials and V-CDT with a reassessment of the atomic weight of sulfur

T. Ding, S. Valkiers, H. Kipphardt, P. De Bièvre, P.D.P. Taylor, R. Gonfiantini, R. Krouse

Journal:

Geochimica et Cosmochimica Acta

Year:

2001

Language:

english

File:

PDF, 49 KB

english, 2001

2

Measurement of the isotopic composition of germanium using GeF4 produced by direct fluorination and wet chemical procedures

H. Kipphardt, S. Valkiers, F. Henriksen, P. De Bièvre, P.D.P. Taylor, G. Tölg

Journal:

International Journal of Mass Spectrometry

Year:

1999

Language:

english

File:

PDF, 653 KB

english, 1999

3

Preparation of two synthetic isotope mixtures for the calibration of isotope amount ratio measurements of sulfur

T. Ding, S. Valkiers, H. Kipphardt, C. Quetel, P. De Bièvre, P.D.P. Taylor, R. Gonfiantini

Journal:

International Journal of Mass Spectrometry

Year:

2000

Language:

english

File:

PDF, 65 KB

english, 2000

4

Present State of the avogadro constant determination from silicon Crystals with natural isotopic compositions

Fujii, K., Waseda, A., Kuramoto, N., Mizushima, S., Becker, P., Bettin, H., Nicolaus, A., Kuetgens, U., Valkiers, S., Taylor, P., Paul De Bievre, Mana, G., Massa, E., Matyi, R., Kessler, E.G., Jr., Ha

Journal:

IEEE Transactions on Instrumentation and Measurement

Year:

2005

Language:

english

File:

PDF, 432 KB

english, 2005

5

C−N Bond Insertion of a Complexed Phosphinidene into a Bis(imine) − A Novel 2,3-Sigmatropic Shift

Mark J. M. Vlaar, Pieter Valkier, Marius Schakel, Andreas W. Ehlers, Martin Lutz, Anthony L. Spek, Koop Lammertsma

Journal:

European Journal of Organic Chemistry

Year:

2002

Language:

english

File:

PDF, 148 KB

english, 2002

6

Addition of a Phosphinidene Complex to C=N Bonds: P-Ylides, Azaphosphiridines, and 1,3-Dipolar Cycloadditions

Mark J. M. Vlaar, Pieter Valkier, Frans J. J. de Kanter, Marius Schakel, Andreas W. Ehlers, Anthony L. Spek, Martin Lutz, Koop Lammertsma

Journal:

Chemistry - A European Journal

Year:

2001

Language:

english

File:

PDF, 168 KB

english, 2001

7

A thermoelectrically regulated multipurpose cuvette for simultaneous time-dependent measurements

Ruud Kraayenhof, Jaap J. Schuurmans, Leen J. Valkier, Jan P.C. Veen, Daan Van Marum, Carel G.G. Jasper

Journal:

Analytical Biochemistry

Year:

1982

Language:

english

File:

PDF, 2.15 MB

english, 1982

8

Computational procedures for the treatment of measured or published isotope abundance data

F. Schaefer, P.D.P. Talor, S. Valkiers, P. De Bièvre

Journal:

International Journal of Mass Spectrometry and Ion Processes

Year:

1994

Language:

english

File:

PDF, 499 KB

english, 1994

9

Comparative isotopic measurements on xenon and krypton

Y Aregbe, S Valkiers, K Mayer, P De Bièvre

Journal:

International Journal of Mass Spectrometry and Ion Processes

Year:

1996

Language:

english

File:

PDF, 327 KB

english, 1996

10

Synthetic isotope mixtures for the calibration of isotope amount ratio measurements of carbon

K Russe, S Valkiers, P.D.P Taylor

Journal:

International Journal of Mass Spectrometry

Year:

2004

Language:

english

File:

PDF, 144 KB

english, 2004

11

Absolute sulfur isotope amount ratios in two batches of high purity SO2 gas: sulfur isotope reference materials IRMM-2012 and IRMM-2013

S. Valkiers, T. Ding, K. Ruße, P. De Bièvre, P.D.P. Taylor

Journal:

International Journal of Mass Spectrometry

Year:

2005

Language:

english

File:

PDF, 99 KB

english, 2005

12

Silicon isotope amount ratios and molar masses for two silicon isotope reference materials: IRMM-018a and NBS28

S. Valkiers, T. Ding, M. Inkret, K. Ruße, P. Taylor

Journal:

International Journal of Mass Spectrometry

Year:

2005

Language:

english

File:

PDF, 54 KB

english, 2005

13

Quantification of the degree-of-isotopic-equilibrium of carbon and oxygen isotopes in mixtures of CO2 gases

S. Valkiers, M. Varlam, K. Ruβe, M. Berglund, P. Taylor, J. Wang, M. Milton, P. De Bièvre

Journal:

International Journal of Mass Spectrometry

Year:

2007

Language:

english

File:

PDF, 1014 KB

english, 2007

14

Preparation of Synthetic Isotope Mixtures for the calibration of carbon and oxygen isotope ratio measurements (in carbon dioxide) to the SI

S. Valkiers, M. Varlam, K. Ruße, M. Berglund, P. Taylor, J. Wang, M.J.T. Milton, P. De Bièvre

Journal:

International Journal of Mass Spectrometry

Year:

2007

Language:

english

File:

PDF, 846 KB

english, 2007

15

Absolute measurements of isotope amount ratios on gases: Part II. Application of the measurement models developed on real gases

S. Valkiers, M. Varlam, M. Berglund, P. Taylor, R. Gonfiantini, P. De Bièvre

Journal:

International Journal of Mass Spectrometry

Year:

2008

Language:

english

File:

PDF, 764 KB

english, 2008

16

Preparation of argon Primary Measurement Standards for the calibration of ion current ratios measured in argon

S. Valkiers, D. Vendelbo, M. Berglund, M. de Podesta

Journal:

International Journal of Mass Spectrometry

Year:

2010

Language:

english

File:

PDF, 735 KB

english, 2010

17

SSITKA investigation of CO and H2 competitive adsorption at PEM fuel cell anode catalysts

J.C. Davies, G. Tsotridis, M. Varlam, S. Valkiers, M. Berglund, P. Taylor

Journal:

International Journal of Mass Spectrometry

Year:

2010

Language:

english

File:

PDF, 1.09 MB

english, 2010

18

Novel concept for the mass spectrometric determination of absolute isotopic abundances with improved measurement uncertainty: Part 3—Molar mass of silicon highly enriched in 28Si

Axel Pramann, Olaf Rienitz, Detlef Schiel, Bernd Güttler, Staf Valkiers

Journal:

International Journal of Mass Spectrometry

Year:

2011

Language:

english

File:

PDF, 910 KB

english, 2011

19

An accurate determination of the triple point temperature of pure 20Ne and 22Ne

F. Pavese, S. Valkiers, P.P.M. Steur, D. Ferri, D. Giraudi

Journal:

The Journal of Chemical Thermodynamics

Year:

2010

Language:

english

File:

PDF, 274 KB

english, 2010

20

Separation of fission products, nitric acid plutonium and uranium by extraction chromatography with TBP-polystyrene

J.P. Glatz, h. Bokelund, S. Valkiers

Journal:

Inorganica Chimica Acta

Year:

1984

Language:

english

File:

PDF, 256 KB

english, 1984

21

Using isotopic disequilibrium of CO2 to model gas adsorption in mass spectrometric measurements

Roberto Gonfiantini, Staf Valkiers, Philip D.P. Taylor, Paul De Bièvre

Journal:

International Journal of Mass Spectrometry and Ion Processes

Year:

1997

Language:

english

File:

PDF, 799 KB

english, 1997

22

Adsorption in gas mass spectrometry. I. Effects on the measurement of individual isotopic species

Roberto Gonfiantini, Staf Valkiers, Philip D.P. Taylor, Paul De Bièvre

Journal:

International Journal of Mass Spectrometry and Ion Processes

Year:

1997

Language:

english

File:

PDF, 843 KB

english, 1997

23

Adsorption in gas mass spectrometry II. Effects on the measurement of isotope amount ratios

Roberto Gonfiantini, Staf Valkiers, Philip D.P. Taylor, Paul De Bièvre

Journal:

International Journal of Mass Spectrometry and Ion Processes

Year:

1997

Language:

english

File:

PDF, 862 KB

english, 1997

24

A primary xenon isotopic gas standard with SI traceable values for isotopic composition and molar mass

S. Valkiers, Y. Aregbe, P.D.P. Taylor, P. De Bièvre

Journal:

International Journal of Mass Spectrometry and Ion Processes

Year:

1998

Language:

english

File:

PDF, 580 KB

english, 1998

25

(Anti-)ferromagnetic coupling in Fe/Si multilayers from polarized neutron reflectometry

H. Fredrikze, A. van der Graaf, M. Valkier, J. Kohlhepp, F.J.A. den Broeder

Journal:

Physica B: Condensed Matter

Year:

1997

Language:

english

File:

PDF, 136 KB

english, 1997

26

“Calibration” in isotopic measurements

H. Kipphardt, S. Valkiers, P.D.P. Taylor, P. De Biévre

Journal:

International Journal of Mass Spectrometry

Year:

2000

Language:

english

File:

PDF, 176 KB

english, 2000

27

A primary isotopic gas standard for krypton with values for isotopic composition and molar mass traceable to the Système International d’Unités

Y Aregbe, S Valkiers, J Poths, J Nørgaard, H Kipphardt, P De Bièvre, P.D.P Taylor

Journal:

International Journal of Mass Spectrometry

Year:

2001

Language:

english

File:

PDF, 147 KB

english, 2001

28

A method to induce and assess isotopic equilibrium of oxygen

Y Aregbe, S Valkiers, R Gonfiantini, J Nørgaard, P.D.P Taylor

Journal:

International Journal of Mass Spectrometry

Year:

2002

Language:

english

File:

PDF, 191 KB

english, 2002

29

A primary isotopic gas standard for sulfur in the form of SF6 with Système International d’Unités traceable values for isotopic composition and molar mass

S Valkiers, H Kipphardt, T Ding, R Damen, P De Bièvre, P.D.P Taylor

Journal:

International Journal of Mass Spectrometry

Year:

1999

Language:

english

File:

PDF, 138 KB

english, 1999

30

Determination of the absolute32S/34S and32S/33S ratios of IAEA-S-1, IAEA-S-2 and IAEA-S-3 reference materials and V-CDT sulfur isotope standard

T. Ding, S. Valkiers, H. Kipphardt, P. D. P. Taylor, P. De Bievre, R. Gonfiantini

Journal:

Chinese Science Bulletin

Year:

1998

Language:

english

File:

PDF, 61 KB

english, 1998

31

The International Measurement Evaluation Programme, IMEP-8: carbon and oxygen isotope ratios in CO2

J. Nørgaard, S. Valkiers, L. Van Nevel, E. Vendelbo, I. Papadakis, O. Bréas, P. Taylor

Journal:

Analytical and Bioanalytical Chemistry

Year:

2002

Language:

english

File:

PDF, 1.34 MB

english, 2002

32

Detection of reprocessing activities through stable isotope measurements of atmospheric noble gases

Y. Aregbe, K. Mayer, S. Valkiers, P. De Bièvre

Journal:

Analytical and Bioanalytical Chemistry

Year:

1997

Language:

english

File:

PDF, 88 KB

english, 1997

33

The importance of the Avogadro constant for amount-of-substance measurements

P. De Bièvre, S. Valkiers, P. D. P. Taylor

Journal:

Analytical and Bioanalytical Chemistry

Year:

1998

Language:

english

File:

PDF, 192 KB

english, 1998

34

Progress Towards the Determination of the Relationship of Triple-Point Temperature versus Isotopic Composition of Neon

F. Pavese, B. Fellmuth, K. D. Hill, D. Head, Y. Hermier, L. Lipinski, T. Nakano, A. Peruzzi, H. Sakurai, A. Szmyrka-Grzebyk, A. G. Steele, P. P. M. Steur, O. Tamura, W. L. Tew, S. Valkiers, L. Wolber

Journal:

International Journal of Thermophysics

Year:

2008

Language:

english

File:

PDF, 232 KB

english, 2008

35

Acoustic Resonator Experiments at the Triple Point of Water: First Results for the Boltzmann Constant and Remaining Challenges

Gavin Sutton, Robin Underwood, Laurent Pitre, Michael de Podesta, Staf Valkiers

Journal:

International Journal of Thermophysics

Year:

2010

Language:

english

File:

PDF, 1.37 MB

english, 2010

36

Further Progress Toward the Determination ofTtp−x(22Ne)

F. Pavese, M. Fahr, Y. Hermier, K. D. Hill, L. Lipinski, T. Nakano, A. Peruzzi, H. Sakurai, F. Sparasci, P. P. M. Steur, A. Szmyrka-Grzebyk, O. Tamura, W. L. Tew, S. Valkiers, J. van Geel

Journal:

International Journal of Thermophysics

Year:

2010

Language:

english

File:

PDF, 331 KB

english, 2010

37

Determination of the isotopic composition and atomic weight of tungsten using gas source mass spectrometry: opening the route to the establishment of the traceability of tungsten amount measurements to the SI system?

P.D.P. Taylor, S. Valkiers, D. Vendelbo, P. De Bièvre

Journal:

International Journal of Mass Spectrometry and Ion Processes

Year:

1994

Language:

english

File:

PDF, 295 KB

english, 1994

38

Release of anthropogenic xenon to the atmosphere: a large-scale isotope dilution

Y. Aregbe, K. Mayer, S. Valkiers, P. De Bièvre

Journal:

International Journal of Mass Spectrometry and Ion Processes

Year:

1996

Language:

english

File:

PDF, 500 KB

english, 1996

39

Absolute isotope amount ratio measurements on gases: Part I: Measurements of isotope amount ratios—Basic theory

M. Varlam, S. Valkiers, M. Berglund, P. Taylor, R. Gonfiantini, P. De Bièvre

Journal:

International Journal of Mass Spectrometry

Year:

2008

Language:

english

File:

PDF, 419 KB

english, 2008

40

Uncertainty assessment of Si molar mass measurements

G. Mana, E. Massa, S. Valkiers, G.-D. Willenberg

Journal:

International Journal of Mass Spectrometry

Year:

2010

Language:

english

File:

PDF, 596 KB

english, 2010

41

A determination of the Avogadro Constant

P. Sevfried, P. Becker, A. Kozdon, F. Lüdicke, F. Spieweck, J. Stümpel, H. Wagenbreth, D. Windisch, P. De Bièvre, H. H. Ku, G. Lenaers, T. J. Murphy, H. S. Peiser, S. Valkiers

Journal:

Zeitschrift für Physik B Condensed Matter

Year:

1992

Language:

english

File:

PDF, 1.03 MB

english, 1992

42

Interlayer coupling in Fe/Si multilayers studied by polarized neutron reflectometry

A. van der Graaf, M. Valkier, J. Kohlhepp, F.J.A. den Broeder

Journal:

Journal of Magnetism and Magnetic Materials

Year:

1997

Language:

english

File:

PDF, 283 KB

english, 1997

43

Apparent strong biquadratic contributions to the interlayer exchange coupling in Fe/Si multilayers

J. Kohlhepp, F.J.A. den Broeder, M. Valkier, A. van der Graaf

Journal:

Journal of Magnetism and Magnetic Materials

Year:

1997

Language:

english

File:

PDF, 298 KB

english, 1997

44

Toward the Avogadro constant-preliminary results on the molar volume of silicon

Sacconi, A., Peuto, A.M., Pasin, W., Panciera, R., Lenaers, G., Valkiers, S., van den Berg, M., De Bievre, P.

Journal:

IEEE Transactions on Instrumentation and Measurement

Year:

1989

Language:

english

File:

PDF, 554 KB

english, 1989

45

A more accurate value for the Avogadro constant

De Bievre, P., Valkiers, S., Peiser, S., Becker, P., Ludicke, F., Spieweck, F., Stumpel, J.

Journal:

IEEE Transactions on Instrumentation and Measurement

Year:

1995

Language:

english

File:

PDF, 305 KB

english, 1995

46

The silicon-28 path to the Avogadro constant-first experiments and outlook

Becker, P., Bettin, H., De Bievre, P., Holm, C., Kutgens, U., Spieweck, F., Stumpel, J., Valkiers, S., Zulehner, W.

Journal:

IEEE Transactions on Instrumentation and Measurement

Year:

1995

Language:

english

File:

PDF, 345 KB

english, 1995

47

Measuring the molar mass of silicon for a better Avogadro constant: reduced uncertainty

Gonfiantini, R., de Bievre, P., Valkiers, S., Taylor, P.D.P.

Journal:

IEEE Transactions on Instrumentation and Measurement

Year:

1997

Language:

english

File:

PDF, 138 KB

english, 1997

48

The molar volume of silicon [Avogadro constant]

De Bievre, P., Valkiers, S., Gonfiantini, R., Taylor, P.D.P., Bettin, H., Spieweck, F., Peuto, A., Pettorruso, S., Mosca, M., Fujii, K., Tanaka, M., Nezu, Y., Leistner, A.J., Giardini, W.J.

Journal:

IEEE Transactions on Instrumentation and Measurement

Year:

1997

Language:

english

File:

PDF, 87 KB

english, 1997

49

A reassessment of the molar volume of silicon and of the Avogadro constant

De Bievre, P., Valkiers, S., Kessel, R., Taylor, P.D.P., Becker, P., Bettin, H., Peuto, A., Pettorruso, S., Fujii, K., Waseda, A., Tanaka, M., Deslattes, R.D., Peiser, H.S., Kenny, M.J.

Journal:

IEEE Transactions on Instrumentation and Measurement

Year:

2001

Language:

english

File:

PDF, 81 KB

english, 2001

50

Evaluation of the molar volume of silicon crystals for a determination of the Avogadro constant

Fujii, K., Waseda, A., Kuramoto, N., Mizushima, S., Tanaka, M., Valkiers, S., Taylor, P., Kessel, R., Paul De Bievre

Journal:

IEEE Transactions on Instrumentation and Measurement

Year:

2003

Language:

english

File:

PDF, 444 KB

english, 2003

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