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Wyszukujesz frazę "stability indicating method" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Development and validation of stability-indicating HPLC method for diflucortolone valerate and isoconazole nitrate combination
Autorzy:
doğanay, Asuman
Özlem Gündoğdu, Suriye
Şimşek, Funda
Çapan, Yılmaz
Powiązania:
https://bibliotekanauki.pl/articles/895569.pdf
Data publikacji:
2019-02-28
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
stability indicating method
HPLC analysis
Diflucortolone valerate
İsoconazole nitrate
Opis:
The combination of diflucortolone valerate (DIF) and isoconazole nitrate (ISO) is commonly used in pharmaceutical preparations. Though, there are already few methods in the literature for the simultaneous determination of these two compounds, none of them involves the stability indicating property that is emphasized by the ICH guidelines. In the present study, a stability-indicating HPLC assay method was developed and subsequently validated for the simultaneous determination of diflucortolone valerate (DIF) and isoconazole nitrate (ISO) in their combined pharmaceutical cream formulations. Separation of active substances and their degradation products was achieved on an ACE column (150x4.6 mm id, 5µm particle size) with an isocratic mobile phase of sodium dihydrogen phosphate buffer and methanol mixture in the ratio of 27: 73, v/v with UV detection at 240 nm. The chromatographic separation was performed in a very short run time with a flow rate of 1.5 mL/min. The developed method was validated as per United States Pharmacopeia (USP) and International Conference on Harmonization (ICH) guidelines. DIF and ISO active substances were exposed to stress conditions separately and also in their combined drug product form in order to examine the stability indicating property of the proposed method. Stressed samples were analyzed by using HPLC equipped with a photo diode array (PDA) detector and the method was found to be stability-indicating. Therefore, we introduced a facile method for routine analysis of DIF and ISO in combined cream pharmaceutical dosage forms and their corresponding stability studies.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2019, 76, 1; 49-58
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
DEVELOPMENT OF A GREEN STABILITY-INDICATING HPLC-DAD METHOD FOR THE ANALYSIS OF TILDIPIROSIN IN PHARMACEUTICAL FORMULATION
Autorzy:
gamal, mohammed gamal
Powiązania:
https://bibliotekanauki.pl/articles/895699.pdf
Data publikacji:
2020-06-29
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
stability indicating method
high performance liquid chromatography (HPLC)
forced degradation study
Tildipirosin
injectable solution
Opis:
This study aimed to develop a simple stability-indicating HPLC-DAD method for the assay of Tildipirosin (TPS), which is a 16-member ring semi-synthetic macrolide, in an injectable solution. TPS is commonly used in the USA for the treatment of animal's respiratory infection. The isocratic elution was set up using the Inertsil-ODS column with the flow rate set at 0.9 mL min-1 and the detection wavelength of 285 nm. The column temperature was ambient and the overall runtime was 5 minutes. Additionally, the mobile phase was water: acetonitrile: trifluoroacetic acid (53.45: 46.45: 0.10, by volume). The HPLC-forced degradation stability method for TPS in Egydipiro Injectable Solution was performed in different stress conditions, i.e. light/UV, heat, acid, base, and oxidation. The results showed the linearity range was 36.00 to 108.00 µg mL-1 for TPS. The correlation coefficient was higher than 0.999 and the accuracy was 98.78%. The degradation percentages were presented ranging from 31.54% in the photodegradation condition to 50.10% in the base degradation. The Eco-scale score was about 82 points indicating an excellent green chromatographic technique. Therefore, the novel stability method was unique in terms of simplicity and environment-friendly aspects. The new HPLC–DAD method was the first, green, stability-indicating chromatographic method for a TPS analysis with its degradation products. However, the major drawbacks of the new chromatographic method are the incomplete identification of degradation products and the inability to propose an appropriate mechanism for drug degradation. Overall, the method can be employed to evaluate TPS stability under various storage conditions.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2020, 77, 3; 443-452
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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