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Table 3 1:1 Quinine-haematin complex: Observed and calculated values of electronic absorption peaks and peak strengths. (* Peak strength normalised by taking γ peak strength as 1.0.)

From: The relationship of physico-chemical properties and structure to the differential antiplasmodial activity of the cinchona alkaloids

  α peak (nm) β peak (nm) γ peak (nm) α peak * strength β peak* strength γ peak* strength [Q] / [H]
observed 602 490 408 10 1.2 1 0.8
calculated 545.4 489.4 408.4 5.4 1.1 1 1
Ratio obs/calc 1.1 1.0 1.0 1.9 1.1 1 0.8