Propofos Colloidal Gold Rapid Detection Card is a rapid detection tool specially designed for the detection of propofos pesticide residues in food. Propofos, as an organophosphorus insecticide, is widely used in pest control of vegetables, fruits and other crops. However, if its residues exceed the standard, it will pose a potential threat to human health. Therefore, it is essential to quickly and accurately detect propofos residues in food.

The detection card is made based on the principle of colloidal gold immunochromatography technology. Its core is to combine propofos antigen with colloidal gold particles to form a marker, and then construct a detection system through a detection line (coated with propofos-BSA conjugate) and a quality control line (coated with sheep anti-mouse IgG antibody) on a nitrocellulose film. When the sample solution (such as food extract) drops into the detection card and the sample hole, it moves up under capillary action. If the sample contains propofos, it will compete with the colloidal gold-labeled antibody to bind the antigen check point of the detection line, resulting in the detection line color becoming lighter or disappearing; conversely, if the sample does not contain propofos or the residue is lower than the detection limit, the detection line will develop color, and the quality control line will always develop color, and the result will be clear.

Compared with traditional detection methods (such as gas chromatography, liquid chromatography, etc.), the propylbromophosphorus colloidal gold rapid detection card has significant advantages: first, the detection speed is fast, usually 10-15 minutes to produce results, without the need for complex instruments and professional operation; second, the operation is convenient, only simple extraction of samples, dropwise addition of liquid, artificial interpretation of the results by the naked eye; third, the cost is low, suitable for grass-roots supervision, enterprise initial screening and other scenarios; fourth, the sensitivity is high, can reach the detection limit of μg/kg level, and can meet the requirements of food safety standards.

In the application scenario, the test card is suitable for raw material acceptance, production process monitoring of agricultural product planting bases and food processing enterprises, as well as rapid screening by market supervision departments, etc., to help timely detect the problem of excessive propyl bromide residues and ensure food safety from the source.

In short, the rapid detection card of propyl bromide colloidal gold has become an important tool for the detection of propyl bromide residues in food with its fast, convenient and sensitive characteristics, providing strong support for the protection of public dietary safety.