What is the Thiamethoxam Colloidal Gold Rapid Detection Card?

In modern agricultural production, thiamethoxam, as an efficient and broad-spectrum neonicotinoid insecticide, is widely used in a variety of crops such as grain, vegetables, and fruits to control spiking pests such as aphids and planthoppers. However, if used improperly or in excess, its residues may enter the human body through the food chain, posing a potential threat to health. Therefore, the rapid and accurate detection of thiamethoxam residues in agricultural products has become an important part of ensuring food safety. And thiamethoxam colloidal gold rapid detection card is an important tool to meet this demand.

So, what exactly is thiamethoxam colloidal gold rapid detection card? It is a rapid detection product based on colloidal gold immunochromatography technology. The core principle is to use the colloidal gold-labeled thiamethoxam antigen to compete with the thiamethoxam residue (hapten) in the sample to bind specific antibodies in the detection line area. When the residual concentration of thiamethoxam in the sample is lower than the detection limit (LOD), the marker will bind to the antibody and develop color on the detection line, resulting in a positive result; conversely, if the residual concentration of thiamethoxam in the sample is higher than the detection limit, the marker will bind to the thiamethoxam in the sample and cannot bind to the detection line antibody. The detection line does not develop color and presents a negative result.

This detection card has significant advantages: first, the detection speed is extremely fast, usually 10-15 minutes to read the results, greatly reducing the waiting time of traditional detection methods; secondly, it is easy to operate, without the need for professional instruments and complex pre-processing steps, just drop the sample extraction solution into the sample hole, and the chromatography reaction can be automatically completed; furthermore, it has high sensitivity, can reach ng/mL level, and can accurately capture low-concentration residues; at the same time, it also has the characteristics of high portability and low cost, suitable for grassroots testing, enterprise quality control, customs quarantine and other scenarios.

In the application scenario, the rapid detection card of thiamethoxam colloid gold can be widely used for the screening of thiamethoxam residues in various agricultural products (such as vegetables, fruits, grains), drinking water, soil and other samples. For example, farmers can quickly detect the surface residues of crops before harvest and adjust the medication in time; food processing plants can check the raw materials into the factory to prevent unqualified products from flowing into the production process; regulatory authorities can also use it to conduct market sampling and quickly lock in risky products.

In general, the fast detection card of thiamethoxam colloid gold plays an important role in the field of food safety detection with its fast, accurate and convenient characteristics, providing strong technical support for protecting consumers' "safety on the tip of the tongue".