Analysis of the testing principle of early pregnancy test paper

Early pregnancy test strips are actually a relatively convenient product that helps women check whether they are pregnant, and the method of use is very simple. The main thing is to drop urine on the test paper. If the test reaction is positive, it means that you are pregnant. Well, if the test reaction is negative, it may not be pregnant. Of course, the most important thing is that if you want to know whether you are pregnant, you should go to the hospital for a check-up.

The detection reagent uses the principle of immunochromatographic double antibody sandwich method to make HCG detection test strips, which can measure HCG in urine samples within 3 minutes. During the test, when the urine sample is siphoned through the colloidal gold-labeled antibody, an antigen-antibody colloidal gold complex is formed. The complex continues to crawl and passes through the coated anti-HCGα subunit Mcab to form a double antibody sandwich colloidal gold complex, which appears as a color band at the coating line. The excess colloidal gold antibody continues to crawl and forms a colloidal gold immune complex with the sheep anti-mouse control line, which appears as a color band. The HCG colloidal gold test kit uses a double antibody sandwich one-step technology and colloidal gold as an indicator marker to detect the HCG concentration in urine to confirm whether a woman is pregnant. The test strip is a reliable indicator to assist clinical determination of pregnancy.

Human chorionic gonadotropin (HCG) is a glycoprotein hormone produced by the placenta of pregnant women. The early pregnancy test strips use double antibody sandwich one-step technology and colloidal gold as an indicator marker to detect the HCG concentration in urine to confirm whether a woman is pregnant.

The above is an introduction to the application principles of test papers. Through these introductions, everyone should understand how to use the test papers correctly when detecting whether they are pregnant. At the same time, we should also remind every female friend that they should be responsible for the health of their fetus. It is recommended to go to the hospital to confirm the pregnancy, because in many cases, the test paper can also cause a false pregnancy.