Payment & Shipping Terms:
|Method:||Gold Colloidal||Format:||16 Panel Multiple Panel|
|Specimen:||Urine Only||Testing Time:||3-5 Minutes|
|Shelf Life:||2 Years||Application:||16 Drugs Test|
16 panel Drug Abuse test kit 15 urine drug test plus adulterant strip
The Multi-drug Rapid Test Panel (Urine) is rapid chromatographic immunoassays for the qualitative and simultaneous detection up to sixteen of the following drugs in human urine. The designed cutoff concentrations for these drugs are as follows:
|Adulteration ( Oxidants,Specific Gravity,pH)||/|
The Multi-drug Rapid Test Panel (Urine) is one-step immunoassay in which chemically labeled drugs (drug-protein conjugates) compete for limited antibody binding sites with drugs which may be present in urine. The test panel contains membrane strips which are pre-coated with drug-protein conjugates on the test band(s). Each strip, the drug antibody-colloidal gold conjugate pad is placed at one end of the membrane. In the absence of drug in the urine, the solution of the colored antibody-colloidal gold conjugate move along with the sample solution upward chromatographically by capillary action across the membrane to the immobilized drug-protein conjugate zone on the test band region. The colored antibody-gold conjugate then attach to the drug-protein conjugates to form visible lines as the antibody complex with the drug conjugate. Therefore, the formation of the visible precipitant in the test zone occurs when the test urine is negative for the drug.When the drug is present in the urine, the drug/metabolite antigen competes with drug-protein conjugate on the test band region for the limited antibody. When a sufficient concentration of the drug is present, it will fill the limited antibody binding sites. This will prevent attachment of the colored antibody (drug-protein conjugate)-colloidal gold conjugate to the drug-protein conjugate zone on the test band region. Therefore, absence of the color band on the test region indicates a positive result.A control band with a different antigen/antibody reaction is added to the immunochromatographic membrane strip at the control region (C) to indicate that the test has performed properly. This control line should always appear regardless of the presence of drug or metabolite. If the control line does not appear the test panel should be discarded.
Adulteration is the tampering of a urine specimen with the intention of altering the test results. The use of adulterants can cause false negative results in drug tests by either interfering with the screening test and/or destroying the drugs present in the urine. Dilution may also be employed in an attempt to produce false negative drug test results.One of the best ways to test for adulteration or dilution is to determine certain urinary characteristics such as pH, and Specific Gravity and to detect the presence of Oxidants in urine.
INTERPRETATION OF RESULTS
NEGATIVE:* A colored line appears in the Control region (C) and colored lines appears in the Test region (T). This negative result means that the concentrations in the urine sample are below the designated cut-off levels for a particular drug tested.
*NOTE: The shade of the colored lines(s) in the Test region (T) may vary. The result should be considered negative whenever there is even a faint line.
POSITIVE: A colored line appears in the Control region (C) and NO line appears in the Test region (T). The positive result means that the drug concentration in the urine sample is greater than the designated cut-off for a specific drug.
INVALID: No line appears in the Control region (C). Insufficient specimen volume or incorrect procedural techniques are the most likely reasons for Control line failure. Read the directions again and repeat the test with a new test card. If the result is still invalid, contact your manufacturer.
A study was conducted to determine the cross-reactivity of the test with compounds in either drug-free urine or drug positive urine containing, Amphetamine, Barbiturates, Benzodiazepines, Buprenorphine, Cocaine, Marijuana, Methadone, Methamphetamine, Methylenedioxymethamphetamine, Morphine, Tramadol , Methaqualone, Ketamine ,Phencyclidine, Propoxyphene or Tricyclic Antidepressants. The following compounds show no cross-reactivity when tested with the Multi-Drug Rapid Test Panel with Adulteration at a concentration of 100 µg/mL. Visual interpretations occurred at 5 minutes after specimen application. Results are presented in table below.
Table: Cross Reactivity
|Caffeine||Gentisic acid||Oxalic acid||d,l-Tyrosine|
Conclusion: The compounds listed in above table show no cross-reactivity when tested at a concentration of 100 mg/ml in 5 minutes.
Contact Person: Jerry Meng