《中国药典》原子量表中量值末位括号内数值含义探讨

Meanings of the Digit in Parentheses Following the Last Figure of Atomic Weights in Chinese Pharmacopoeia Appendix

目的规范应用国际原子量表给出的量值信息。方法通过比较《中国药典》附录原子量表与IUPAC原子量末位括号内数值的含义,比较其差异。结果 IUPAC推荐该数值的原意代表不确定度,在《中国药典》中注释为准确度,二者不可替代。结论建议使用IUPAC推荐的原子量表中各相应数值的含义。

Objective To apply legitimately values given in the table of atomic weights.Methods The meanings of the last significant digit of relative atomic mass was discoursed by comparing the footnotes in Chinese Pharmacopoeia and USP-NF with IUPAC technical reporters.Results It was deemed that there was difference between accuracy in Ch.P.and uncertainty in IUPAC.The conception of＂accuracy＂in Ch.P.should not be expressed as quantity,but as of uncertainty according to IUPAC.Conclusion It is suggested that the annotations of table of Standard Atomic Weights recommended by IUPAC be used