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. 2015 Jul 14;407(23):7013–7023. doi: 10.1007/s00216-015-8864-2

Table 3.

S/N, LOD and LOQ calculated using an injected amount of 25 fmol of each porphyrin (n = 3)

Porphyrin S/N ratio LOD [fmol injected,( ±SD)] LOQ [fmol injected, (±SD)]
Uroporphyrin I 9.4 7.9 (±0.8) 26.5 (±2.8)
7-Carboxylporphyrin I 6.8 11.1 (±1.6) 36.9 (±5.5)
6-Carboxylporphyrin I 6.3 11.8 (±1.9) 39.4 (±6.2)
5-Carboxylporphyrin I 19.5 3.8 (±0.2) 12.8 (±0.7)
Coproporphyrin I 10.2 7.3 (±0.7) 24.5 (±2.4)
Mesoporphyrin IX 11.0 6.8 (±0.6) 22.8 (±2.1)
Protoporphyrin IX 27.6 2.7 (±0.1) 9.1 (±0.3)