Method for detecting content of dimeticone in simethicone emulsion

The invention belongs to the technical field of pharmaceutical analysis, and particularly relates to a method for detecting the content of dimeticone in simethicone emulsion. The invention provides a method for detecting the content of dimeticone in simethicone emulsion, which comprises the following steps: mixing simethicone emulsion, toluene and diluted hydrochloric acid, extracting, and drying the obtained supernatant to obtain a test solution; the method comprises the following steps: mixing a reference substance of dimeticone, toluene and diluted hydrochloric acid, extracting, and drying the obtained supernatant to obtain a reference substance solution; respectively carrying out infrared spectrophotometric detection on the reference substance solution and the test solution, and then obtaining the content of the dimeticone by utilizing a formula I. The method for determining the content of the dimeticone in the simethicone emulsion has the advantages of strong specificity, high accuracy, high precision an