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|Author(s):||Rolf L. Zeisler; Bryan E. Tomlin; Karen E. Murphy;|
|Title:||Neutron Activation Analysis with Pe- and Post-Irradiation Chemical Separation for the Value Assignments of AL, V, and Ni in the New Bovine Liver SRM 1577C|
|Published:||October 22, 2009|
|Abstract:||Instrumental neutron activation analysis (INAA) as carried out at the National Institute of Standards and Technology (NIST) is inadequate for de-termining Al, Ni, and V at the levels found in the newly prepared Standard Reference Material (SRM) 1577c Bovine Liver. High matrix activity limits the INAA sensitivity for Al and V, and the low fast-neutron flux at the NIST Center for Neutron Research prevents the determination of Ni via 58Co. To overcome shortcomings in the value assignment, the authors initiated a cooperative approach using NAA with previously established chemical separation procedures and with significantly different neutron sources to determine Al and V with pre-irradiation separation of the elements at NIST, and V and Ni with post-irradiation separation at the Nuclear Physics Institute (NPI) Ře . The determinations were confirmed with the analyses of several SRMs, the results for V from the two laboratories were found in agreement. The work supported the certification of mass fraction values for V and Ni in SRM 1577c.|
|Citation:||Journal of Radioanalytical and Nuclear Chemistry|
|Pages:||pp. 69 - 74|
|Keywords:||Blank contributions, bovine liver, low-level trace elements, standard addition, Standard Reference Material, value assignment|
|Research Areas:||Nuclear Analytical Chemistry, Standard Reference Materials, INAA|
|PDF version:||Click here to retrieve PDF version of paper (169KB)|