高效液相色谱法快速测定抗真菌制剂M18中的吩嗪-1-羧酸

 建立了测定抗真菌制剂M18中吩嗪 1 羧酸的反相高效液相色谱方法。流动相为甲醇 5mmol/L磷酸缓冲液(pH 5 0 ) (体积比为 6 0∶40 ) ,流速为 1mL/min ,检测波长为 2 48nm ,线性范围是 5 0mg/L～ 5 0 0mg/L ,检测限是 30mg/L ,回收率为 97 5 3% ,RSD为 1 5 %。该方法具有快速、简便、灵敏、重现性好的特点。

Determination of Phenazine-1-Carboxylic Acidin Anti-Fungal Agent M18 byHigh Performance Liquid Chromatography

A reversed-phase HPLC method for the determination of phenazine-1-carboxylic acid (PCA) in antifungal agent M18 is established. The mobile phase was a mixture of MeOH-5 mmol/L phosphate buffer (pH 5.0) (60:40, volume ratio). The flow rate was 1.0 mL/min, and the detection wavelength was 248 nm. The linear range and detectable limit were 50 mg/L-500 mg/L and 30 mg/L respectively. The recovery was 97.53% and RSD was 1.5%. The method of PCA extraction and detection has proven to be much faster, simpler, more sensitive, accurate and reproducible than those reported already. The assay results can be used as a very important criterion for large-scale production.