标准值:
Al ,As ,B ,Ba ,Be ,Bi ,Br ,Ca,
Ce ,Cl ,Cs ,Cu ,Dy ,Er ,F ,Fe,
Gd ,Hf,Ho ,K ,Lu ,La ,Mg ,Mn,
Mo ,Nd ,N ,Ni ,P ,Yb ,Zn ,Se,
Si ,Sm ,Sr ,Tb ,Th ,Ti ,V ,Y,
Pb ,Pr ,Rb ,S ,Sc ,[Na] ,[ash],
[Ge] ,[Hg] ,[Tl] ,[Tm] ,[U] ,[Co],
[Cr] ,[Eu] ,[Sb] ,[Li] ,[I] ,[Nb]