Method for detecting related substances of 2-bromomethyl-1, 3-dioxopentane

The invention relates to the technical field of chemical analysis, and particularly discloses a method for detecting related substances of 2-bromomethyl-1, 3-dioxopentane. DB-624UI (30m * 0.32 mm * 1.8 [mu] m) is adopted as a detection chromatographic column, the column temperature is set to be 38-42 DEG C and maintained for 2-5 min, then the temperature is increased to 110-130 DEG C at the rate of 9-11 DEG C/min, then the temperature is increased to 245-255 DEG C at the rate of 49-51 DEG C/min and maintained for 2-5 min, the temperature of a sample inlet is 255-265 DEG C, the temperature of a detector is 245-255 DEG C, and the split ratio is 3-10: 1, so that the detection of 2-bromomethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5- According to the present invention, the simultaneous quantitative detection of a variety of known impurities and unknown impurities in 2-bromomethyl-1, 3-dioxopentane can be achieved, such that the real reflection of the quali