1. L. Xiao, Y. H. Zhang, Y. G. Liu, and J. F. Qin, “INAA of Essential Trace Elements in Some Traditional Chinese Medicines,” orally presented at the 2nd International Conference on Nuclear and Radiochemistry, Brighton, UK, July 1988, 11–15.
2. W. Mertz,Science 213, 1322 (1981).
3. M. C. Li et al., Nucl. Instr.Methods 181, 309 (1981).
4. M. C. Li et al., Ibid. Nucl. Instr.Methods 181, 309 (1981).
5. Annual Report;Y. L. Xu,1984