FIA—FT—IR determination of ibuprofen in pharmaceuticals
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Ibuprofen@silver loaded on poly(vinyl alcohol)/chitosan co-polymer scaffold as a novel drug delivery system
2022, Materials Today CommunicationsCitation Excerpt :FT-IR spectrum of Ibu and Ibu@Ag Nps is given in Fig. 1. In this regard, the peak at 3463 cm−1 is due to the OH band of Ibu [27]. The absorption peak at 2540–3098 cm−1 reveals symmetric and asymmetric stretching bands of the alkyl group.
Spectrophotometric nanodrop system for quantification of trace concentrations of ibuprofen in water samples using silver-functionalized magnetic nanoparticles
2022, Microchemical JournalCitation Excerpt :In Fig. 2 (bottom) the characteristic signals for IBU are displayed. Specifically, the peak appearing at 1704.12 cm−1 corresponds to the C = O bond, the C − H bond from CH2 is displayed at 2866.52 cm−1, bonds corresponding to C = C are shown at 1511.41 and 1459 cm−1, while C − H bond appears at 2922.15 cm−1 [10]. Additionally, a Brunauer-Emmett-Teller (BET) test was conducted to determine the contact surface area of Fe3O4@AgNPs, giving rise to 124.566 m2/g, after applying BET consistency criteria [5].
Antibacterial effects and ibuprofen release potential using chitosan microspheres loaded with silver nanoparticles
2020, Carbohydrate ResearchCitation Excerpt :These can be attributed to the asymmetric and symmetrical stretching modes of the COO− group of ibuprofen, respectively. When comparing these same bands in the CHM-Ibu-Ag spectrum, we observed a small displacement, possibly occurring because of the presence of Ag [37]. The silver materials further exhibited a band displacement related to stretching of the CONH at 1657 cm−1 to 1632 cm−1, because chitosan is not fully deacetylated (deacetylated degree = 81%).
Preparation of ibuprofen/hydroxypropyl-Γ-cyclodextrin inclusion complexes using supercritical CO<inf>2</inf>-assisted spray drying
2018, Journal of Supercritical FluidsDirect determination of sorbitol and sodium glutamate by attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) in the thermostabilizer employed in the production of yellow-fever vaccine
2016, TalantaCitation Excerpt :Fourier transform infrared spectrometry (FTIR) has already been employed in the direct quantification of some components in several types of samples such as pesticide formulations [5–9], cosmetics [10,11], foodstuffs [12–14] and others [15–17]. Special attention has been given to the analysis of pharmaceutical products, especially in the quantification of their active ingredients [18–22]. To the best of our knowledge, there is no work in the literature reporting the use of FTIR for the quality control of vaccines and/or their raw materials.