Principles and characteristics of drug detection test strips
2021-08-13 14:11:12   source：   Comment：0 Click：

Colloidal gold monoclonal antigen and antibody immune competition principle. When the content of morphine or its metabolites in the sample reaches 300ng/ml, it binds to the limited antibody with colored tiny particles fixed on the permeable membrane, thereby preventing it from binding to the antigen in the test area (T-line area) , There will be no sedimentation ribbon in the T-line area. If the specimen does not contain drugs or their metabolites, a ribbon precipitation line will appear in the T-line area. Another ribbon (C line area) on the test paper is used to determine whether the experiment is reliable.