High-performance liquid analytical method for fenoldopam mesylate and preparations thereof

The invention discloses a detection control method for content and related substances of fenoldopam mesylate and preparations thereof. The method detects fenoldopam mesylate and preparations thereof by using high-performance liquid chromatography. Analytical conditions such as optimal mobile phase composition, flow speed, detection wavelength and chromatographic columns are optimally selected through mass experiments, and multiple experiments prove that the detection control method for the content and related substances of fenoldopam mesylate and preparations thereof is good in stability and repeatability, high in analytical efficiency and good in separation, detects fenoldopam mesylate and related substances thereof qualitatively and quantitatively in a sensitive and accurate manner, may thus estimate the quality of fenoldopam mesylate and preparations thereof in an objective, comprehensive and accurate manner and is significant to the quality of fenoldopam mesylate and preparations thereof and to the ensuring of clinical curative effect.