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Table 4 Chromatographic and spectrometric properties of the analytes involved in heme biosynthesis

From: Early detection of colorectal adenocarcinoma: a clinical decision support tool based on plasma porphyrin accumulation and risk factors

Porphyrin Molecular formula Theoretical M/Z ratio [M + H]+ Experimental M/Z ratio [M + H]+ RT [min]
Protoporphyrin IX C34H34N4O4 563.2653 563.2651 6.88
Iron protoporphyrin IX C34H32FeN4O4 616.1768 616.1775 4.48
Biliverdin C33H34N4O6 583.2551 583.2565 2.96
Coproporphyrin I C36H38N4O8 655.2762 655.2775 1.85
Protoporphyrin IX dimethylester C36H38N4O4 591.2966 591.2961 8.06
  1. M/Z Mass to charge ratio, RT Retention time