Sulfonamides, The SAS rapid detection test strip has the characteristics of convenience, speed, and sensitivity, and is suitable for on-site large-scale sample testing. The test strip contains antigens pre fixed in the nitrocellulose membrane test area (T) and II antibodies in the control area (C). After the gold labeled antibodies in the micropores are dissolved in milk, they are incubated at 50 ℃ for 3 minutes. The test strip is inserted into the gold labeled micropores and reacted for 5 minutes. If the sample is negative, a purple red band appears in the T zone after adding the sample; If the sample is positive, there will be no purple red bands in the T zone. Regardless of the presence or absence of sulfonamides in the sample, A purple red strip will appear in Zone C.