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Stability-indicating RP-HPLC method for determination of beclomethasone dipropionate in nanocapsule suspensions
Chassot, Janaíne Micheli; Ferreira, Luana Mota; Gomes, Felipe Pereira; Cruz, Letícia; Tasso, Leandro.
Affiliation
  • Chassot, Janaíne Micheli; Federal University of Santa Maria. Department of Industrial Pharmacy. Santa Maria. BR
  • Ferreira, Luana Mota; Federal University of Santa Maria. Department of Industrial Pharmacy. Santa Maria. BR
  • Gomes, Felipe Pereira; Federal University of Santa Maria. Department of Industrial Pharmacy. Santa Maria. BR
  • Cruz, Letícia; Federal University of Santa Maria. Department of Industrial Pharmacy. Santa Maria. BR
  • Tasso, Leandro; Federal University of Santa Maria. Department of Industrial Pharmacy. Santa Maria. BR
Braz. j. pharm. sci ; 51(4): 803-810, Oct.-Dec. 2015. tab, graf
Article in En | LILACS | ID: lil-778417
Responsible library: BR1.1
ABSTRACT
abstract A simple stability-indicating RP-HPLC/UV method was validated for determination of beclomethasone dipropionate (BD) in nanocapsule suspensions. Chromatographic conditions consisted of a RP C18column (250 mm x 4.60 mm, 5 µm, 110 Å), using methanol and water (8515 v/v) as mobile phase at 1.0 mL/min with UV detection at 254 nm. The calibration curve was found to be linear in the concentration range of 5.0-25.0 µg/mL with a correlation coefficient > 0.999. Precision was demonstrated by a relative standard deviation lower than 2.0%. Accuracy was assessed by the recovery test of BD from nanocapsules (98.03% to 100.35%). Specificity showed no interference from the components of nanocapsules or from the degradation products derived from acid, basic and photolytic conditions. In conclusion, the method is suitable to be applied to assay BD in bulk drug and in nanocapsules, and it can be employed to study stability and degradation kinetics.
RESUMO
resumo Um método simples de CLAE-FR/UV indicativo de estabilidade foi validado para a determinação do dipropionato de beclometasona (BD) em suspensões de nanocápsulas. As condições cromatográficas foram coluna C18 fase reversa (250 mm x 4,60 mm, 5 µm, 110 Å), usando como fase móvel metanol e água (8515 v/v) a 1,0 mL/min, com detecção UV a 254 nm. A curva de calibração foi linear no intervalo de 5,0-25,0 µg/mL com coeficiente de correlação >0,999. A precisão foi demonstrada por um desvio padrão relativo menor que 2,0%. A exatidão foi avaliada pelo teste de recuperação do BD a partir das nanocápsulas (98,03% a 100,35%). O teste de especificidade não mostrou interferência dos componentes das nanocápsulas e nem dos produtos de degradação derivados de condições ácidas, básicas e fotolíticas. Em conclusão, o método é adequado para ser aplicado na avaliação do BD puro e em nanocápsulas e pode ser empregado para o estudo de estabilidade e degradação cinética.
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Full text: 1 Index: LILACS Main subject: Beclomethasone / Chromatography, High Pressure Liquid / Nanocapsules Language: En Journal: Braz. j. pharm. sci Year: 2015 Type: Article

Full text: 1 Index: LILACS Main subject: Beclomethasone / Chromatography, High Pressure Liquid / Nanocapsules Language: En Journal: Braz. j. pharm. sci Year: 2015 Type: Article