Dr. John Karl Böhlke

Member

• SC on Isotopic Abundance Measurement (Member)

• SC on Stable Isotope Reference Material Assessment (Member)

• SC on Natural Assessment of Fundamental Understanding of Isotopes (Member)

Current Projects

• member: Project No. 2005-022-1-200: Calibration of organic and inorganic oxygen-bearing isotopic reference materials

• member: Project No. 2009-026-2-200: Online evaluated isotope ratio database for user communities (2011-2014)

• member: Project No. 2009-027-1-200: Assessment of Stable Isotopic Reference and Inter-Comparison Materials

Completed Projects

• member: Project No. 1999-043-1-200: Element by Element Review of Atomic Weights to the Year 2000

• member: Project No. 2001-019-2-200: Guidelines for mass spectrometric isotope ratio measurements

• member: Project No. 2002-049-2-200: A new comprehensive report on the isotopic compositions of the elements for global user communities

• member: Project No. 2003-031-2-200: Isotopic compositions of selected elements

• member: Project No. 2003-033-1-200: Determination of atomic weights using new analytical techniques

• member: Project No. 2005-022-1-200: Calibration of organic and inorganic oxygen-bearing isotopic reference materials

• member: Project No. 2005-027-1-200: Evaluated published isotope ratio data (2005-2007)

• member: Project No. 2006-025-1-200: Assessment of fundamental understanding of isotopic abundances and atomic weights of the chemical elements

• member: Project No. 2007-028-1-200: Evaluated published isotope ratio data (2007-2009)

• member: Project No. 2007-038-3-200: Development of an isotopic periodic table for the educational community

• member: Project No. 2009-029-1-200: Evaluated Published Isotope Ratio Data (2010-2011)