EXPRESS TESTS FOR THE DETERMINATION OF METABOLITES OF NARCOTIC AND PSYCHOTROPIC MEANS


Varieties of rapid tests to determine the use of drugs
 


A large number of people today suffer from dependence on various narcotic substances, as a result of which rapid tests for the determination of drugs have become widespread. With the help of such a test, you can check for yourself at home whether a person has used any kind of drug. There are several similar tests, each of them has its own characteristics, so it is worth considering this topic in more detail.

Homemade rapid drug tests

On the modern market, new types of narcotic substances regularly appear, and therefore the number of consumers is steadily growing. Rapid drug tests will help determine whether a person is engaged in drug use or your suspicions are groundless, and the suspicious signs of drug addiction are evidence of a disease.

Such tests look like a cardboard strip on which a special layer is placed, impregnated with various compositions of protein and chemical origin. When urine or saliva gets on this layer, it, in the presence of a narcotic substance, reacts with this impregnation. As a result, a bright strip appears on the test. There are also tests in the form of a cassette. When using such a test, you need to drop a few drops of the biosample into a special window on the test.
Rapid tests are highly sensitive, they are able to detect residues of various drugs for 5-14 days, even if the reception was once. You can do this kind of testing yourself at home.


Types

Drug tests are of several types:

Test strips for the determination of narcotic substances in the urine - these tests are strips impregnated with indicator substances, due to which the presence of a certain drug is detected. Such a set can be used even in cases where the type of narcotic substance is unknown. The whole procedure takes no more than 10 minutes, and special equipment or inventory is not required, so the study can be conducted in any conditions.
Cassettes - are able to simultaneously determine the presence of several types of narcotic substances in a biomaterial (for 5 or 10 types). Saliva or urine of the tested person can be used as the test material. In the study of urine test is immersed in a container with liquid, and when checking saliva on the test there is a special panel that is applied saliva. Included with the tests are usually attached additional attributes like a kind of pipette for collecting saliva or a cup for urine.

For which types of drugs

Any psychoactive or narcotic substance in the body is converted into a specific metabolite, which is not so much. Thus, opiates, codeine, heroin or morphine are transformed into morphine, the presence of which in the urine determines the multitest for drugs. Moreover, it can be detected not only in the composition of urine, but also in saliva, washes of hands, on clothing and other research materials.

Modern rapid tests can detect 2-10 varieties of various drugs:

Heroin, morphine;
Marijuana;
Amphetamine and methamphetamine;
Barbiturates;
Cocaine;
Methadone;
Ecstasy or MDMA;
Phencyclidine;
Benzodiazepine;
Antidepressant drugs;
Alcohol and nicotine.


Express drug tests are able to confirm or refute the consumption of the main known narcotic substances. But, unfortunately, the drug market today is flooded with synthetic novelties like smoking mixtures, spices, mixes, etc. This is a whole group of psychoactive, addictive substances. The problem of test studies is the lack of reliability in relation to such drugs, therefore, reliably determine the use of such substances is quite difficult. In such cases, can only help specialist narcologist.

The principle of the rapid tests analyzers

Each drug test has a control area that displays the results of the study. The principle of operation of such multitests is simple. If narcotic compounds are present in the biomaterial, then specific antibodies with which the test strip is impregnated react to the products of drug metabolism. As a result, one bar appears on the control area.

If the subjects did not use drugs, the result will be negative, and two red lines appear on the control area.

To use the test correctly, you must follow a few specific rules:

Biomaterial must be collected only in clean dishes made of glass or plastic, such as glass.
The collection of urine or saliva should be carried out in such conditions that the subject could not dilute or replace boimaterial.

If the urine is collected and there is no multi-test, then the sample can be held in the refrigerator for a while. When the test is available, the urine is left to warm to room temperature, only then the test is conducted.
In the process of research, the fact of using narcotic substances is revealed no later than 2-3 days from the moment of their use. In the case of cannabiodic drugs, methadone, cocaine or benzodiazepines, the presence of drugs is determined within two weeks from the time of anesthesia. Both the biomaterial and the test should be at room temperature in order for the results to be as reliable as possible.
The test strip is dipped into the biomaterial to the limit line for 0.5-1 minutes, then put on a dry surface. Results are evaluated after a 5–10 minute time period.
With the result, the analysis in two strips is decoded as negative, that is, the subjects did not take any drugs.
The result in 1 strip confirms that there was a use of a narcotic substance. If positive, urine samples should be saved for more complete analysis.
If no lines appear on the test strip, the study is considered erroneous and requires repetition by another multitest.

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