Determination of Trace Technetium by Magnetically Assisted Sample Preparation/X-Ray Fluorescence Spectrometer

A magnetically assisted sample preparation(MASP) process for capturing and separating trace Tc has been established by X-ray florescence spectrometer. By using TEVA paramagnetic capture, the sample can be prepared quickly while concentration and separation are all done. The influences of reacting time, the mass of capture used, the volume and acidity of aqueous phase on this sample preparation have been studied. The detection limit is 0.33 mg/L, which meets the requirements of analyzing Tc by XRF at 1AW in PUREX.