1. Department of Nuclear Medicine China‐Japan Union Hospital of Jilin University Changchun 130033 P. R. China
2. MOE key Laboratory for Analytical Science of Food Safety and Biology College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
3. NHC Key Laboratory of Radiobiology School of Public Health of Jilin University Changchun 130033 P. R. China