Bs. Shanbhag et Zr. Turel, DESTRUCTIVE AND NONDESTRUCTIVE ANALYSIS OF SOME ELEMENTS IN TISSUE AND ENVIRONMENTAL-SAMPLES BY THERMAL-NEUTRON ACTIVATION-ANALYSIS TECHNIQUE, Journal of radioanalytical and nuclear chemistry, 197(2), 1995, pp. 417-425
A rapid and selective method has been developed and applied for determ
ining elements present in tissue and environmental samples by both des
tructive and nondestructive activation analysis. Nondestructive activa
tion analysis involves the irradiation of the sample and standard of t
he elements such as Mn, Na and K with thermal neutrons from Cf-252 neu
tron source followed by radioassay of the (n,r) products on a HPGe det
ector coupled to a PC-based MCA. Elements are determined by irradiatin
g the samples in a thermal neutron flux of the CIRUS reactor and radio
chemically separating the isotopes of interest using substoichiometric
extraction and precipitation technique. The statistical evaluation of
the method with respect to accuracy and precision of the method and i
ts sensitivity are discussed.