A comprehensive study for the determination of forty eight elements in the certification of a hazardous standard reference material

摘要: The centification of standard reference materials is fundamental importance for environmental scientists to proceed with their own quality control programs or calibration procedures. As part the National Institute Standard and Technology (NIST) program, we participated in certification a hazardous waste material. Our efforts concentrated on judiciously using thermal epithermal neutron activation analysis conjunction Compton suppression techniques. We have demonstrated that besides lowering detection limit several elements usually not reported by conventional NAA, ideally suited substantially reduce certain spectrla interferences. A detailed comprehensive study was undertaken this method highlight which isotopes can be most favorably used.