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Table 1 Relative peak areas of the components detected by electrospray LC/MS measurement

From: Mass spectrometrical analysis of recombinant human growth hormone (Genotropin®) reveals amino acid substitutions in 2% of the expressed protein

Molecular mass (Da)

Area (cps)

Area (%)

22126.9

4909.8

84.4

22143.5

479.7

8.2

22158.7

121.5

2.1

22174.4

120.8

2.1

22107.6

76.9

1.3

22240.7

69.9

1.2

22395.9

40.4

0.7

  1. Average molecular masses of the components detected in the LC/MS spectrum of 1 pM Genotropin® sample. The peak areas were calculated from the reconstructed spectrum (Figure 1) recorded in positive ionization.
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Proteome Science

ISSN: 1477-5956