I am working on HPLC. I havent come across any literature mentioning the extinction co-efficient of Curcumin in Methanol, though there are papers on extinction coefficient of curcumin in ethanol.
The molar absorption coefficient, ε, of curcumin in MeOH/H2O (1:1 v/v) should be 49,370 M-1 cm-1; 55,000 or 54,954
M-1 cm-1 in EtOH; and 67,680 M-1 cm-1 in MeOH, respectively.
Ratanasuda Waranyoupalin et al., Cent. Eur. J. Chem. • 7(3) • 2009 • 388-394
DOI: 10.2478/s11532-009-0037-8
The molar absorption coefficient, ε, of curcumin in MeOH/H2O (1:1 v/v) should be 49,370 M-1 cm-1; 55,000 or 54,954
M-1 cm-1 in EtOH; and 67,680 M-1 cm-1 in MeOH, respectively.
Ratanasuda Waranyoupalin et al., Cent. Eur. J. Chem. • 7(3) • 2009 • 388-394
DOI: 10.2478/s11532-009-0037-8
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