SEARCH Articles Figures Tables Determination of Long-lived Radionuclides Isotope ratio measurements of long-lived radionuclides Long-lived radionuclides half-life determination Long-lived radionuclides isotope ratio measurements Long-lived radionuclides mass spectrometry detection limits Long-lived radionuclides trace/matrix separation Long-lived radionuclides ultratrace analysis Long-lived radionuclides, sorption Nuclear fuel, long-lived radionuclides Ultratrace Analysis of Long-lived Radionuclides in Very Small Sample Volumes