PRINCIPLE OF TEST :
Drug Tests (Strip/Card/Device/Cup) is a competitive binding immunoassay in which drugs and drug metabolites in a urine sample compete with immobilized drug conjugate for limited labeled antibody binding sites. When a sufficient amount of urine specimen is applied to the sample pad of the test device, the urine specimen migrates through the test device by capillary action. If the drug or drug metabolite concentration in the specimen is below the cut-off level, the anti-drug antibodies in colloidal gold particles will bind to the drug antigens coated in the test line of the nitrocellulose membrane to form a T line, which indicates a negative result. If the concentration of drug in the urine specimen is above the cut-off level, it will bind with antibodies conjugated with colloidal gold particles, so that no T line will be developed in the test region, which indicates a positive result.
About Us
FAQ
1.Are you factory/manufacturer or trade company?
Yes,We are the direct factory manufacturer who owns productsion lines and workers.and everything is flexible and you don't worry about changing extra money by the middle man or trader.
2.Can you make our design ?
Yes,Your own designs/sketches/pictures are welcoming.
3.Samples available?
Yes,Samples day 3-7days ,more daysif make complicate design .
4.Shipment?
Samples use fast express(UPS,DHL,FEDEX,etc),bulk delivery by air or ship.
5.Payment Terms?
Western Union and T/T,Alipay ,For your convenience.