Elemental Composition Calculator v1.0

element	mass	min	max	options
target mass: +/-
C:				calculate: monoisotopic mass average mass nitrogen rule: do not apply / show all even mass = even #nitrogens even mass = odd #nitrogens charge: -1 0 +1 offset mass:
H:
N:
O:
S:
P:
user X:
user Y:
user Z:

written by Jef Rozenski (1999)
Nucleic Acids Masspec Toolbox