Development and validation of an analytical method by HPLC for simultaneous quantification of betamethasone dipropionate and betamethasone sodium phosphate in injectable suspension

Quimica nova

Sousa, Valeria Pereira de¹  Cabral, Lúcio Mendes¹  Simon, Alice¹ 

[1] Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil

关键词: betamethasone;    high performance liquid chromatography;    injectable suspensions.;   

DOI  :  10.1590/S0100-40422012000300027

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

A reversed-phaseHPLC method was developed and validated to separate and simultaneously quantifythe association of betamethasone sodium phosphate (BP) and betamethasone dipropionate(BD) in injectable suspensions. Chromatographic conditions were ternary gradientelution at 1.6 mL/min on a C18 column with 254 nm. The linearity of the methodwas established in the range 120 to 280 mg/mL BD, and 48 to 112 mg/mL BP. TheRSD of intermediate precision of the method was <1% and recoveries were 99-101%for both drugs. The method proved selective, linear, precise, accurate and robustfor quantifying BP and BD in commercial injectable suspensions.

【 授权许可】

CC BY