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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