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Fourier transform infrared spectra of the individual powders, mixed powder containing all the ingredients, and microcapsules.
Notes: (A) PB powder. (B) DCA powder. (C) SA powder. (D) PB-DCA-SA powder. (E) PB-SA microcapsules. (F) PB-DCA-SA microcapsules.
Abbreviations: DCA, deoxycholic acid; PB, probucol; T, transmitted light; SA, sodium alginate.
