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Wyszukujesz frazę "high-performance liquid chromatography" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
DETERMINATION OF ACYCLOVIR IN RABBIT PLASMA BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHIC (HPLC) TECHNIQUE
Autorzy:
Malik, Nadia S.
Ahmad, Mahmood
Minhas, Muhammad U.
Khalid, Qandeel
Powiązania:
https://bibliotekanauki.pl/articles/895236.pdf
Data publikacji:
2019-06-28
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
plasma
acyclovir
Reversed phase high-performance liquid chromatography
Opis:
A rapid, sensitive and simple reversed-phase high-performance liquid chromatographic (HPLC) method has been developed and validated for the determination of acyclovir (ACV) in rabbit plasma. BDS C18 column was used to conduct analysis using ammonium dihydrogen phosphate buffer (50mM) and methanol as mobile phase (98:2), with pH adjusted to 2.5 using orthophosphoric acid. Flow rate was kept at 1 mL/min. Selective precipitation of plasma proteins were done by adding 5% perchloric acid. Precipitated plasma proteins were separated by centrifugation. ACV moves in a supernatant, which was snapped and passed through a syringe filtration assembly. Direct injection of supernatant was given into a BDS C18 column and ACV was detected at 256 nm. The limit of detection for ACV in plasma was estimated as 15ng/mL whereas the limit of quantitation was calculated as 25 ng/mL. Moreover, the developed method has been found to be selective and linear into concentration range of 25 – 2000 ng/mL. The present method could be successfully applied to samples from bioavailability and bioequivalence studies.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2019, 76, 3; 421-429
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
Tytuł:
DEVELOPMENT AND VALIDATION OF RP-HPLC METHOD FOR SIMULTANEOUS QUANTIFICATION OF SULFACETAMIDE SODIUM AND PREDNISOLONE SODIUM PHOSPHATE
Autorzy:
Abdullah, Nabiha
Karamat, Fizza
Qamar, Shaista
Abbas, Mateen
Khan, Abdulmuqeet
Ullah, Naseem
Powiązania:
https://bibliotekanauki.pl/articles/895491.pdf
Data publikacji:
2019-02-28
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
sulfacetamide sodium
prednisolone sodium phosphate
reverse phase-high performance liquid chromatography
detection limits
quantification limits
Opis:
Sulfacetamide sodium (SFS), in combination with prednisolone sodium phosphate (PSP), is indicated for ophthalmic infections. The present study describes a reverse phase-high performance liquid chromatography method for simultaneous estimation of these two drugs using diode-array detector. Isocratic elution with solvent system acetate buffer (0.01 M, pH 7): acetonitrile: methanol 75:20:5 (v/v/v), at a flow rate of 0.8 mL min-1 gave optimum resolution. The detection limits for SFS and PSP were calculated as 1.15 µg mL-1 and 1.45µg mL-1, while quantification limits were 3.83 µg mL-1 and 4.84 µg mL-1 respectively. Accuracy was found to be 99-101% with relative standard deviation (RSD) values less than 2%. The proposed method is accurate, precise, sensitive, reproducible and applicable for normal usage in quality control laboratories. It would prove advantageous in utilizing less time and resources as previously there is no reported single assay for simultaneous quantification of the aforementioned drugs.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2019, 76, 1; 37-47
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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