Sample

CHEMICAL DETAILS SAMPLE ORIGIN SAMPLE PREP./SIZE PYROL. CONDITIONS TOTAL ION COUNTS

CYTOCHROME C (from equine heart) for amino acid composition see Table 13 Boehringer, Mannheim, GFR suspension in methanol; 10 pg standard 1 X 105

remarks - High intensities at m/z 69, 83 with respect to hemoglobin (Spectrum

B.8) may point to the high Lys content; the higher peaks at m/z 94, 108 to the higher Tyr content and the lower peak at m/z 119 to less Phe. As in the case hemoglobin no marked contribution of the porphyrin group appears to be visible

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