Accuracy And Sensitivity Is Attainable Using Elisa Test Kits

By Sally Delacruz


Recently, scientists discovered a new method of diagnosing illnesses, antigens, antibodies and other foreign materials. Scientists normally mix reagents with samples of biological materials to be tested, and then wait for color change. Elisa test kits carry the tools used in carrying out tests for the existence of antigens and antibodies.

The main aim for the manufacture of these tools is to foster consistency and accuracy of the results obtained. It is therefore important for them to be easy to follow, precise, sensitive and target certain types of foreign materials in the body. The kits should therefore go through serious testing with different types of samples.

The kits are usually calibrated to enhance visibility, and, hence, accuracy in taking measurements. Calibration also provides the sensitivity required in reacting to the reagents. Good instruments must also satisfy users in terms of quality specifications. They must, in addition to this, foster dynamism in measurements, precision, and recovery, and should be consistent in giving readings.

These kits help in making research faster. A device that is deficient of the ability to reproduce results and sensitivity in making readings during research is not the best for Elisa test. Researchers might end up using a lot of money and time as a result of using these apparatus. This means that one needs to take a lot of caution while buying them from any company.

Besides antibodies, many other factors are crucial during the manufacture of these tools. For instance, rigorous antibody screening must be done, good standards chosen, steps for sample preparation developed and essays properly validated with the help of matrices. All these process are done with the purpose of attaining effectiveness.

The kits have the ability to detect lowly concentrated foreign elements with the objective of diagnosing and eliminating certain germs while still developing. It has always been possible to use them on plants, human beings and other human beings. Quality control within industries can also be achieved through using them.

This process involves putting antigens onto a surface, and then applying specific antibodies onto them. Specific substrates are then added to this combination of antibodies and antigens. Results are always in form of color change.

When the kits are used in carrying out the same test, the tools on the kit are dipped into a test tube of samples collected. The set-up is then washed and then incubated in chromogens. The kit itself is made up of rods with about twelve ogives that protrude. The process of washing and incubating normally occurs when the ogive is immersed in small wells made of micro-plates containing reagents.

Different reagents can be used with these kits. This means, it is also possible to simultaneously detect a variety of antibodies and antigens. This is normally done through sensitizing the ogive to react towards many reagents. It is also possible to increase the volume of the sample for the sake of improving the sensitivity of the test both in clinical and environmental samples.

The ability of these testing tools to establish the quantity of antibodies has been applied in testing for HIV and other immune deficiency related diseases. When few antibodies are observed in the body, then the victim is declared HIV positive. The fact that they are portable also contributes heavily towards making Elisa kits popular. Care has to be taken while buying them; most manufacturers do not pay attention to quality.




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