Drug for treating piglet diarrhea, as well as preparation method, detection method and application thereof

The invention relates to the field of traditional Chinese medicines, particularly to a drug for treating piglet diarrhea, as well as a preparation method, a detection method and the application thereof. The drug is prepared from the following raw materials in parts by weight: 1-2 parts of sabina chinensis (L.) Ant.[Juiperus chinensis.L.] and 1-2 parts of caryopteris incana (Thunb.) Miq. [Nepeta incana Thunb. ex Houtt.]. The drug can be prepared into powders and granules. The preparation method comprises the following steps: soaking dry sabina chinensis (L.) Ant.[Juiperus chinensis.L.] and dried caryopteris incana (Thunb.) Miq. [Nepeta incana Thunb. ex Houtt.] with 11 times of water for 1 hour for the first time, decocting for 1 hour, decocting for 1 hour with 4 times of water for the second time, merging water decoctions, filtering, concentrating filtrate, drying, grinding into fine powders, screening, uniformly mixing, and preparing into powders. The chromatographic conditions in a drug quality detection method are that a HypersilDs chromatographic column is adopted; acetonitrile and a 0.05 mol/L sodium dihydrogen phosphate solution are adopted as moving phases, and the ratio of acetonitrile to the sodium dihydrogen phosphate solution is 30:70; the detection wavelength is 200 nm; the column temperature is 20 DEG C; the flow rate is 1.0 mL.min; and the sample amount is 10 [mu]L.