ATFirst™ Strep A

In stock... For the Rapid Detection of group A streptococcal antigen (Strep A) from throat swab specimens.

ATFirst™ H. pylori

In stock... Rapid detection of Helicobacter pylori in human serum, plasma or whole blood.

ATFirst™ PSA

In stock... Rapid detection of Prostate Specific Antigen in serum, plasma or whole blood.

ATFirst™ DOA

In stock... for the Rapid Detection of the most commonly abused drug substances in Urine samples.

Immunochromatographic assays

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These types of Immunochromatographic assays for easy finger stick whole blood use have been approved by the FDA for years. The company is now working on extending the intended use of these whole blood devices for the presence of various antigens & antibodies. By placing multiple lines of captured antibodies on the membrane, each for a different analyte, one can develop a single test for more than one analyte.

Antibody Conjugation Technnology
There are two core technologies required for developing a rapid immunochromatographic test kit that uses Gold colloid and an antigen (antibody). The first one is the technology to conjugate various types of antigens (antibodies) to Gold colloid and the second is to fix an antigen (antibody) on a nitrocellulose membrane. These technologies are closely concerned with a ultra-high speed test kit’s peculiarity and sensitivity, that is, the product’s quality so that these are treated considerably accurately, and these can be regarded as the most important technologies for the product. AT First Diagnostic LLC., has devoted itself to apply its vast experiences and various professional knowledge on its rapid test kit development, and to develop a faster and more accurate test kit.

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