Preparation method of skin spot pricking method diagnosis lung acariasis antigen liquid

The invention discloses a preparation method for antigen liquid for diagnosing pulmonary acariasis by adopting the skin pricking method. The preparation method comprises the following steps: firstly, collecting flour contaminated with dust from a flour mill; secondly, inspecting and separating mites through a microscope and feeding the mites; thirdly, when the density of the mites reaches 2000 per gram of feed base, positioning the mites into a sieve to remove the impurities; fourthly, positioning the powder sieved in the third step into a flat bottom enamel disk and separating the powder mites; fifthly, positioning live powder mites into a nylon bag, and immersing the mites into acetone for degreasing; sixthly, after washing, positioning the powder mites on the surface of a dish uniformly, then positioning the mites into a warm box to obtain dried powder mites; seventhly, immersing the dried powder mites into 9 percent of sodium chloride, and positioning the mites into the environment ...