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Author: steven christopher

Displaying records 11 to 20 of 34 records.
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11. Development and Application of an Ultratrace Method for Speciation of Organotin Compounds in Cryogenically Archived and Homogenized Biological Materials
Published: 10/1/2007
Authors: William C Davis, David Point, Steven J Christopher, Michael B. Ellisor, Rebecca S Pugh, Paul R Becker, Barbara J. Porter, Stephen A Wise, Olivier F. X. Donard
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904256

12. Improved Certified Values for Total Mercury and Speciated Mercury in NIST Standard Reference Materials Using Isotope Dilution ICP-MS
Published: 10/1/2007
Authors: Stephen E Long, William C Davis, Steven J Christopher, Jacqueline L Mann, William R. Kelly
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904246

13. Simultaneous Determination of Inorganic Mercury, Methylmercury and Total Mercury Concentrations in Cryogenic Fresh-Frozen and Freeze-Dried Biological Reference Materials
Published: 10/1/2007
Authors: William C Davis, David Point, J Ignacio Garcia Alonso, Steven J Christopher, Stephen A Wise, Olivier F. X. Donard
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904255

14. Simultaneous Determination of Inorganic Mercury, Methylmercury, and Total Mercury Concentrations in Cryogenic Fresh-Frozen and Freeze-dried Biological Reference Materials
Published: 10/1/2007
Authors: David Point, William C Davis, J. I. Garcia Alonso, Mathilde Monperrus, Steven J Christopher, O.F. X. Donard, Paul R Becker, Stephen A Wise
Abstract: A double spike speciated isotope dilution (DS-SID) reaction model was developed to study and correct for the inadvertent transformations affecting methylmercury (MeHg), inorganic mercury (iHg) and total mercury (HgT) measurements in biological tissue ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=832156

15. Standard Reference Materials for Foods and Dietary Supplements
Published: 9/1/2007
Authors: Katherine E Sharpless, Jeanice M Brown Thomas, Steven J Christopher, Robert R. Greenberg, Lane C Sander, Michele M Schantz, Michael James Welch, Stephen A Wise
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902875

16. Improved Certified Values for Total Mercury and Speciated Mercury in NIST SRMs Using Isotope Dilution ICP-MS
Published: 6/1/2007
Authors: Stephen E Long, William C Davis, Russell D Day, Steven J Christopher, Jacqueline L Mann, William R. Kelly
Abstract: Recent improvements in total mercury and mercury speciation measurement capabilities at the National Institute of Standards and Technology have resulted in enhanced sensitivity, selectivity and accuracy in a wide range of matrix reference materials. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=832149

17. Development and Application of an Ultratrace Method for the Speciation of Organotin Compounds in Natural Cryogenic Homogenized Biological Materials
Published: 4/1/2007
Authors: David Point, William C Davis, Steven J Christopher, Michael B. Ellisor, Rebecca S Pugh, Olivier F. X. Donard, Paul R Becker, Barbara J. Porter, Stephen A Wise
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902826

18. Development and Application of an Ultratrace Method for the Speciation of Organotin Compounds in Natural Cryogenic Homogenized Biological Materials
Published: 11/1/2006
Authors: Steven J Christopher, David Point, Michael B. Ellisor, Rebecca S Pugh, Olivier F. X. Donard, Paul R Becker, Barbara J. Porter, Stephen A Wise
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904405

19. Metal Complexes and Free Radical Toxicity Derived from Pfiesteria piscicida
Published: 11/1/2006
Authors: William C Davis, Peter D. Moeller, Kevin Beauchesne, Kevin Huncik, Steven J Christopher, Andrew Gelasco, Pamela Riggs-Gelasco
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904392

20. Murre Eggs (Uria aalge and U. lomvia) as Indicators of Mercury Contamination in the Alaskan Marine Environment
Published: 1/1/2006
Authors: Russell D Day, Stacy S Vander-Pol, Steven J Christopher, William C Davis, Rebecca S Pugh, K. S. Simac, D. G. Roseneau, Paul R Becker
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904346



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