What is the sildenafil colloidal gold rapid detection card?

In the field of food and drug safety, sildenafil is a common therapeutic drug ingredient. If it is illegally added to over-the-counter foods or health products, it may pose a serious threat to human health. In order to quickly and accurately identify such illegal additives, the sildenafil colloidal gold rapid detection card came into being. It is a rapid screening tool based on colloidal gold immunochromatography technology, which can help the tester determine whether the sample contains sildenafil ingredients in a short time.

By definition, the sildenafil colloidal gold rapid detection card is a test strip made by combining sildenafil antibodies with colloidal gold particles through special chromatography materials and reaction systems. When the sample (e.g. liquid, tissue extract, etc.) is dropped into the sample well of the detection card, it will move forward along the chromatography membrane under the action of capillaries. During the process, if the sample contains sildenafil, it will bind to the antibody labeled with colloidal gold to form a complex. When the composite logistics passes through the detection line (coated with sildenafil antigen), it will specifically bind to the antigen. If sildenafil is present in the sample, the detection line will develop color; at the same time, the quality control line (coated with colloidal gold antibody control antibody) will always develop color as an effective reference for reaction. The core advantages of this detection card

are "fast" and "convenient". The entire detection process usually only takes 10-15 minutes, without the need for complex instruments and equipment, and the operator can get started after simple training. In addition, it also has high specificity, which can effectively distinguish sildenafil from structurally similar substances and reduce false positive interference. At the same time, the test results are presented in the form of color-developing strips, which are intuitive and easy to read. Even beginners can quickly judge "positive" or "negative".

In the application scenario, sildenafil colloidal gold rapid test cards are widely used in the fields of on-site screening by food and drug regulatory authorities, corporate self-testing, and scientific research experiments. For example, when testing aphrodisiac health products, Chinese herbal medicines (such as "Cordyceps" and "wolfberry" that may be illegally added to sildenafil), and even some powdered foods of unknown origin, the use of the test card can quickly and preliminarily determine whether there is illegal addition, provide direction for subsequent accurate detection, greatly improve the detection efficiency, and also build a first line of defense for ensuring the safety of public diet and medication.