The objective is to summarize the gamma-ray spectrometry analysis results in the 2022 IAEA comparison exercises and provide a reference for future testing and comparison exercises organization work.Methods activity concentration of five radionuclides,60 Co,134 Cs,137 Cs,210 Pb,and 241 Am,in 3 different samples were measured by HPGe γ spectrometry and analyzed with relative comparison methods under the condition of the mixture quality control source.Results are the relative deviations(Bias)between the reported and the target value were within －15.25%~8.95%,which were 100%accepted.210 Pb,which has traditionally been measured using radiochemical methods,was measured by HPGe γ spectrometry this time with a Bias of 8.95%.Conclusions have achieved that for the radionuclides spiked in the quality control sample,the relative deviations between the values analyzed with relative comparison methods and the target values were relatively small.Therefor,using the uniform quality control samples provided by the comparison organizers can effectively reduce the deviation caused by the traceability of the standard samples in the results.
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