For the qualitative detection of THC in urine.
The THC Gold Rapid Screen Test is a rapid qualitative competitive binding
immunoassay for determination of Marijuana in urine.
SUMMARY AND EXPLANATION OF THE TEST
The THC Gold Rapid Screen Test is a fast and easy to read immunoassay with
no need for instrument. The method employs a unique combination of
monoclonal and polyclonal antibodies to specifically identify
Marijuana in urine with a high degree of sensitivity. Marijuana is
a hallucinogenic agent derived from the flowering portion of the
hemp plant. The active ingredients in marijuana, THC and Cannabinol
can be metabolized and excreted as 11-nor-D9-THC-9-COOH with a
half-life of 24 hours. It can be detected for 1-5 days after use.
Smoking is the primary method of use of marijuana/cannabis. Higher
doses used by abusers produce central nervous system effects,
altered mood and sensory perceptions, loss of coordination,
impaired short-term memory, anxiety, paranoia, depression,
confusion, hallucinations and increased heart rate. A tolerance to
the cardiac and psychotropic effects can occur, and withdrawal
syndrome produces restlessness, insomnia, anorexia and nausea.
Marijuana is controlled substances. GC/MS or immunoassay method has
been developed for the determination of 50ng/ml for Marijuana as
set by the National Institute on Drug Abuse (NIDA).
The THC Gold Rapid Screen Test is a chromatographic absorbent
device in which drug or drug metabolites in a sample compete with
drug antigen immobilized on a porous membrane support for limited
antibody sites. Labeled antibody-dye conjugate mixes with sample
specimen and binds to the free drug presented in sample forming an
antibody-antigen complex. This complex prevents the formation of
pink color bands in the test zone immobilized antigen conjugate
when the drug is presented in the sample urine above the detection
levels (50ng/ml for marijuana). Unbound dye conjugate binds to the
reagent in the control zone and produces a pink-rose color band,
demonstrating that the reagents and device are functioning
A negative specimen produces two distinct color bands, one for the
control in the “C” zone and one for marijuana in the “T” zone.
THC Test REAGENTS AND MATERIALS PROVIDED
1. Test Device A pouched cassette contains a single test for marijuana
2. Dropper A transfer pipette seal in foil pouch together with test device
3. Operation Instruction
THC Test MATERIALS REQUIRED BUT NOT PROVIDED
1. Clock or Timer A container for specimen collection
THC Test WARNING AND PRECAUTIONS
1. For in vitro diagnostic use only.
2. Do not use kit beyond the expiration date.
3. Urine specimens may be infectious; properly handle and dispose
of all used reaction devices in biohazard container.
The kits should be stored at temperature 4-30°C the sealed pouch
for the duration of the shelf life (18 months).
THC Test SAMPLE COLLECTION AND PREPARATION
Collect a fresh urine sample in a clean, dry container, either
plastic or glass, without any preservatives. Urine specimens may be
refrigerated (2-8°C) and stored up to 48 hours before testing.
Urine samples exhibiting visible precipitates should be filtered,
centrifuged or allowed to settle. Use only clear aliquots for
1. Bring the urine sample and test components to room temperature
2. When ready to test, open the pouch at the notch and remove the
test device. Place the test device on a clean, flat surface.
3. Fill the urine dropper with specimen. Holding the dropper
vertically, dispense 2-3 drops (about 50-80 ml) of urine without
air bubble into the sample well.
4. Read the result in 5-10 minutes.
THC Test INTERPRETATION OF RESULTS
1. Negative: Two pink color bands appear. This indicates THC in the specimen is
below the detection sensitivity (50ng/ml).
2. Positive: Only one pink band for control appears. This indicates the THC in
the specimen is above the detection sensitivity.
3. Invalid: The presence of a control line is necessary to validate test
performance. If no band appears the test should be repeated with a
new test device.
Note: There is no meaning attributed to color intensity for C and T
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