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