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. Author manuscript; available in PMC: 2008 Oct 29.
Published in final edited form as: Anal Chem. 2006 Jun 15;78(12):4146–4154. doi: 10.1021/ac0606296

Table 1.

Comparisons of protein masses deduced from molecular formula, ion/ion proton transfer reactions and deconvolution of the MS sepctra.

Calculated Mw (Da) Measured Mw from Reaction (Da) Measured Mw from MS (Da)
insulin 5733.5 5733.5 5733.5
ubiquitin 8564.8 8564.4 8564.1
bovine cytocrhome c 12231.0 12231.5 12231.1
equine cytocrhome c 12360.1 12359.6 12360.4
α-lactalbumin 14178.1 14178.5 14179.5
lysozyme 14305.2 14306.2 14306.3
myoglobin 16950.5 16950.5 16952.0
carbonic anhydrase 29024.7 29024.6 29024.8