Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Paul J. Paulsen"'
Autor:
Richard S Davis, T. J. Murphy, Vincent E. Bower, Paul J. Paulsen, L. J. Powell, J. W. Gramlich
Publikováno v:
J Res Natl Bur Stand (1977)
A report of the Faraday constant as detennined at NBS via silver coulometry and atomic weight measurements is presented. The uncertainty of the reported result represents a five-fold improvement over measurements made at NBS 20 years ago. The result
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0de032b452ad0f833be8e5be18bb00f0
https://pubmed.ncbi.nlm.nih.gov/34566069
https://pubmed.ncbi.nlm.nih.gov/34566069
Publikováno v:
Analytical Chemistry. 69:758-766
A commercial flow-through microwave system was successfully applied as an alternative sample preparation procedure for lead determinations using isotope dilution inductively coupled plasma quadrupole mass spectrometry. Sample is introduced as a slurr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ddeaef4bf8c6f02cdd73ec4efdc1ef3
https://doi.org/10.1021/ac9606923
https://doi.org/10.1021/ac9606923
Publikováno v:
Analytical Chemistry. 66:2505-2513
Total sulfur has been measured in 13 petroleum and 14 coal Standard Reference Materials (SRMs) by isotope dilution thermal ionization mass spectrometry. These materials are suitable as primary and quality control standards for determining the sulfur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1774e9ccd9ff8217d36ffb207ae780ef
https://doi.org/10.1021/ac00087a015
https://doi.org/10.1021/ac00087a015
Autor:
Ellyn S. Beary, Paul J. Paulsen
Publikováno v:
Analytical Chemistry. 66:431-439
Direct, accurate quantitation of ultratrace Nd in La compounds was not possible by ICPMS. The La/Nd ratio of >10 6 required chemical separations to provide a suitable sample solution for instrumental analysis. Separation of Nd from the La matrix is p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::384da2046d4e91b93c44e0585388c253
https://doi.org/10.1021/ac00076a004
https://doi.org/10.1021/ac00076a004
Publikováno v:
Journal of the Air & Waste Management Association. 42:1057-1062
Stable isotopic tracers were used in Roanoke, Virginia, to tag particulate emissions from diesel trucks and residential oil furnaces, two sources of soot and PAHs which cannot be differentiated on the basis of known constituents. Approximately 1.6 g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63734caba00f4002d91af6c657a18da4
https://doi.org/10.1080/10473289.1992.10467051
https://doi.org/10.1080/10473289.1992.10467051
Autor:
T.C. Rains, Ellyn S. Beary, Paul J. Paulsen, Ishwar D. Aggarwal, Kenneth J. Ewing, J. Jaganathan
Publikováno v:
Journal of Crystal Growth. 106:51-60
The analytical challenges posed by the measurement of trace contaminants in high purity metal fluorides require that innovative chemical preparation procedures be used to enhance existing instrumental techniques. The instrumental techniques used to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::131f5338a234c7a1f4381e6c4fd889ca
https://doi.org/10.1016/0022-0248(90)90286-t
https://doi.org/10.1016/0022-0248(90)90286-t
Publikováno v:
Fuel. 72:713-714
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9afb6f56ae5dd18c1afe2471463578c2
https://doi.org/10.1016/0016-2361(93)90660-t
https://doi.org/10.1016/0016-2361(93)90660-t
Publikováno v:
The Analyst. 120:1505
The National Institute of Standards and Technology (NIST) began using inductively coupled plasma mass spectrometry (ICP-MS) for the certification of its Standard Reference Materials (SRMs) in 1986, only a few years after instruments first became comm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::caa75434fd4355e9f105e69a872c142d
https://doi.org/10.1039/an9952001505
https://doi.org/10.1039/an9952001505
Publikováno v:
Journal of Analytical Atomic Spectrometry. 9:1363
Ratio measurements can be made by inductively coupled plasma mass spectrometry (ICP-MS) with precisions approaching 0.1–0.2% relative standard deviation, under carefully controlled conditions. This capability is well suited to isotope dilution quan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8697678ba43fb8405e454c04587889a
https://doi.org/10.1039/ja9940901363
https://doi.org/10.1039/ja9940901363
Publikováno v:
Analytical Chemistry. 60:733-736
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb848ae63b2fac85c9f70cdd0bfa40ee
https://doi.org/10.1021/ac00158a030
https://doi.org/10.1021/ac00158a030