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FTIR overlay for silymarin and Eudragit RS100®. FTIR scan over the entire region (A), comparison zone upfield (B), comparison zone downfield (C).
Notes: Color codes – silymarin (brown); Eudragit RS100® (green); silymarin-Eudragit RS100® (blue).
Abbreviation: FTIR, Fourier transform infrared.
