EZ Split Key Cups

The Integrated E-Z Split Keys Cup II is an immunoassay based on the principle of competitive binding. Drugs which may be present in the urine specimen compete against their respective drug conjugate for binding sites on their specific antibody.
During testing, a urine specimen migrates upward by capillary action. A drug, if present in the urine specimen below its cut-off concentration, will not saturate the binding sites of its specific antibody. The antibody will then react with the drug-protein conjugate and a visible colored line will show up in the test region of the specific drug strip. The presence of drug above the cut-off concentration will saturate all the binding sites of the antibody. Therefore, the colored line will not form in the test region.
A drug-positive urine specimen will not generate a colored line in the specific test region of the strip because of drug competition, while a drug-negative urine specimen will generate a line in the test region because of the absence of drug competition.
To serve as a procedural control, a colored line will always appear at the control region, indicating that proper volume of specimen has been added and membrane wicking has occurred.

Urine Drug Tests Accuracy

There are many reasons to buy urine home drug test kit, but no matter what the reason, it is important that the test be accurate. All of the drug tests sold at DrugTestingWorld.com are professional grade tests that are used in professional drug testing clinics. Therefore, when you use one of our urine drug tests in the privacy of your own home, you have the assurance that the drug test results will be accurate every time.

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