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Stable Isotope Characterization of TICs/TIMs: Analytical Progress Report.

DE2009958174

Publication Date	2009
Personal Author	Volpe, A.; Singleton, M.
Page Count	15
Abstract	The authors measured twelve alkali cyanide samples that were also sent to ORNL and PNNL collaborators. While results indicate distinct delta(sup 13)C and delta(sup 15)N values that would be useful to signature studies, the alkali cyanides, especially NaCN, show chemical breakdown during storage that will influence forensic analysis. Carbon and nitrogen stable isotopic compositions of raw materials used to synthesis TETS were measured. Results indicate wide ranges in delta(sup 13)C and delta(sup 15)N values. Using these raw materials, LLNL scientists synthesized three batches of TETS following published procedures. Stable isotopic measurements of TETS synthesis products indicates nitrogen (epsilon(sup 15)N=-1.7 to -0.8) and carbon (epsilon(sup 13)C=-1.0 to -0.1) fractionation during production.
Keywords	Cyanides Isotopes Alkali metal compounds Chemical compositions Nitrogen Carbon Forensic science Production
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	201001
Contract Number	DE-AC52-07NA27344

Stable Isotope Characterization of TICs/TIMs: Analytical Progress Report.

Stable Isotope Characterization of TICs/TIMs: Analytical Progress Report.
DE2009958174

Publication Date	2009
Personal Author	Volpe, A.; Singleton, M.
Page Count	15
Abstract	The authors measured twelve alkali cyanide samples that were also sent to ORNL and PNNL collaborators. While results indicate distinct delta(sup 13)C and delta(sup 15)N values that would be useful to signature studies, the alkali cyanides, especially NaCN, show chemical breakdown during storage that will influence forensic analysis. Carbon and nitrogen stable isotopic compositions of raw materials used to synthesis TETS were measured. Results indicate wide ranges in delta(sup 13)C and delta(sup 15)N values. Using these raw materials, LLNL scientists synthesized three batches of TETS following published procedures. Stable isotopic measurements of TETS synthesis products indicates nitrogen (epsilon(sup 15)N=-1.7 to -0.8) and carbon (epsilon(sup 13)C=-1.0 to -0.1) fractionation during production.
Keywords	Cyanides Isotopes Alkali metal compounds Chemical compositions Nitrogen Carbon Forensic science Production
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	201001
Contract Number	DE-AC52-07NA27344