Zobrazeno 1 - 10
of 12
pro vyhledávání: '"L A Machlan"'
Autor:
T. G. Dzubay, R. L. Walter, R. D. Willis, J. W. Gramlich, L. J. Moore, A. R. Stiles, E. L. Garner, R. M. Baum, L. A. Machlan
Publikováno v:
Advances in X-ray Analysis. 19:473-486
The purpose of this work was to develop accurate calibration standards which were fully characterized in terms of uniformity and concentration using fundamental measuring methods. Three similar sets of vacuum deposits were commercially made, each set
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::542e3a69c3bf1411a98ddba60933ce27
https://doi.org/10.1154/s0376030800008028
https://doi.org/10.1154/s0376030800008028
Publikováno v:
Clinical Chemistry. 28:1309-1313
Thermal-ionization isotope-dilution mass spectrometry is a highly precise and accurate method for the determination of potassium concentrations in serum. Although not suited for routine use because of the time and expense required, the technique prov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6db1e011a139a767397787b1b526fe9
https://doi.org/10.1093/clinchem/28.6.1309
https://doi.org/10.1093/clinchem/28.6.1309
Publikováno v:
Journal of Research of the National Institute of Standards and Technology
Absolute values have been obtained for the isotopic abundance ratios of a reference sample of nickel (Standard Reference Material 986), using thermal ionization mass spectrometry. Samples of known isotopic composition, prepared from nearly isotopical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9e98298b5efacabdb346a7c408c8a91
http://europepmc.org/articles/PMC4948969
http://europepmc.org/articles/PMC4948969
Autor:
W. R. Shields, I. L. Barnes, Horace A. Bowman, Albert Henins, L. J. Moore, Randall M. Schoonover, C. L. Carroll, Richard D. Deslattes, L. A. Machlan
Publikováno v:
Physical Review Letters. 33:463-466
Measurements are reported on the densities and isotopic-abundance ratios of nearly perfect Si single crystals. These, when combined with optical interferometry of the crystal repeat distance, yield a new value for the Avogadro constant. This result,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf1c393c6aa93cbcbb426e5cd7e1afcd
https://doi.org/10.1103/physrevlett.33.463
https://doi.org/10.1103/physrevlett.33.463
Publikováno v:
Analytical Chemistry. 46:1082-1089
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0aad83ef4c0f866864ee488120e1c8b
https://doi.org/10.1021/ac60344a028
https://doi.org/10.1021/ac60344a028
Autor:
Roy J. Knight, I. L. Barnes, E. L. Garner, J. W. Gramlich, Mitsunobu. Tatsumoto, T. J. Murphy, L. J. Moore, L. A. Machlan, W. R. Shields
Publikováno v:
Analytical Chemistry. 45:880-885
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c1163167e53198b97792654a6b52868
https://doi.org/10.1021/ac60328a005
https://doi.org/10.1021/ac60328a005
Publikováno v:
Clinical chemistry. 28(6)
Thermal-ionization isotope-dilution mass spectrometry is a highly precise and accurate method for the determination of potassium concentrations in serum. Although not suited for routine use because of the time and expense required, the technique prov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::64e5bd5c02753da47b91418630753b4c
https://pubmed.ncbi.nlm.nih.gov/7042122
https://pubmed.ncbi.nlm.nih.gov/7042122
Publikováno v:
Medical times. 87
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a425b7fbe02d916e8785b8bf79db4bbc
https://pubmed.ncbi.nlm.nih.gov/13832311
https://pubmed.ncbi.nlm.nih.gov/13832311
Publikováno v:
Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry. :727
Absolute values have been obtained for the isotopic abundance ratios of a reference sample of silicon using electron impact mass spectrometry. Samples of known isotopic composition prepared from nearly isotopically pure separated silicon isotopes wer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a5f560dbc16d7b3724609250132e4dd
https://doi.org/10.6028/jres.079a.029
https://doi.org/10.6028/jres.079a.029