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theoretical amount of metoprolol (mg) FT-IR analysis The Fourier transform-infrared (FT-IR) spectra of metoprolol and the mixture of metoprolol tartrate with polymers (EC and PEG-6000) are given in
ISR indicating that there is no interaction and instability between the drug, bioenhancer, and other excipient. Finally, it is concluded that FT-IR spectra showed the characteristic peaks as obtained in the drug spectrum, which demonstrated that there
increased to 760 °C, the amount of Na in crystals grows. It could be connected with the reversible exchange of CO 3 2– ions [ 30 ] and rather well conforms to the IR spectra of annealed aorta wall deposit. Some limitations of the tested approach