Elimination of sodium-24 and potassium-42 interferences in activation analysis of biological samples.
We have developed a simple novel column technique for the removal of sodium-24 and potassium-42 based on a heterogeneous isotopic exchange reaction between an organic eluting solution (acetone-hydrochloric acid) and fine crystals of sodium chloride or potassium chloride or their analogs. The technique is fast, efficient, and highly selective; it has been successfully applied to irradiated human tissues prior to gamma-ray spectrometry with lithium-drifted germanium detectors.
D000201:Activation Analysis; D001345:Autoradiography; D006801:Humans; D007474:Ion Exchange; D008168:Lung / Q000032:analysis*; D008722:Methods; D011194:Potassium Isotopes; D012975:Sodium Isotopes; D013051:Spectrometry, Gamma; D013679:Technology, Radiologic
D011194:Potassium Isotopes; D012975:Sodium Isotopes