Method for detecting etomidate in electronic cigarette oil

The invention belongs to the technical field of etomidate, and particularly relates to a method for detecting etomidate in electronic cigarette oil, which comprises the following steps: adding the electronic cigarette oil, deionized water, a polar organic solvent and inorganic salt solid powder into a container, oscillating and uniformly mixing, standing, and centrifuging the supernatant after standing; taking the centrifuged supernatant liquid, adding an acidic reagent, oscillating and uniformly mixing, and centrifuging again; adding an alkaline reagent into the supernatant obtained after centrifugation again, oscillating and uniformly mixing, centrifuging, and taking the supernatant as a to-be-detected solution; mixing the to-be-detected solution, the nanogold sol and a coagulant, and detecting by using a Raman spectrometer; wherein the coagulant comprises an inorganic acid aqueous solution. Based on the Raman spectrum technology, whether etomidate exists in the electronic cigarette or not is accurately jud