Method for simultaneously detecting 2-pyrrolidone and formic acid in povidone K30

The invention relates to a method for simultaneously detecting 2-pyrrolidone and formic acid, in particular to a method for simultaneously detecting the 2-pyrrolidone and formic acid in povidone K30. The method utilizes liquid chromatography to determine the content of the 2-pyrrolidone and the formic acid. The method utilizes the liquid chromatography to detect the 2-pyrrolidone and the formic acid, is high in accuracy, wide in linear range, strong in specificity, good in precision and repeatability and high in sensitivity, can provide a limit control basis for simultaneously detecting the content of the 2-pyrrolidone and the formic acid, can better control the quality of the povidone K30 and can effectively supervise production and ensure the stability of product quality and the medication safety of patients.