What is the Dactyl Colloidal Gold Quick Detection Card?

2025-08-18

The problem of chemical residues in food has always been the focus of food safety supervision. As a high-efficiency acaricide, dactyl is widely used in fruit trees, vegetables and other crops. If the residue exceeds the standard, it may endanger human health. In order to quickly and accurately detect the residue of dactyl in food, dactyl colloidal gold rapid detection card came into being, and has become a commonly used detection tool for food companies, regulatory authorities and scientific research institutions.

So, what is dactyl colloidal gold rapid detection card? It is a rapid detection product based on colloidal gold immunochromatography technology. It is mainly composed of card shell, sample pad, binding pad, reaction film and absorbent paper. The core principle is to use colloidal gold-labeled pyridactyl antibodies to bind specifically to the pyridactyl antigen in the sample, and determine whether the sample contains pyridactyl and its residue through color development results.

When using, just take a small amount of samples (such as fruits, vegetables, tea leaves, etc.), after simple sample processing, add the liquid to the detection card and sample hole, wait for a certain period of time (usually 10-15 minutes), and observe the color development of the detection line and the quality control line. If the detection line shows color, it means that the residual amount of pyridactyl in the sample exceeds the threshold; if it does not show color, it is negative. This kind of detection card has the characteristics of simple operation, no need for professional equipment, fast detection speed (results within about 30 minutes of the whole process), high sensitivity (can reach μg/L level), etc., which can meet the needs of on-site rapid screening and preliminary laboratory testing.

In practical applications, the rapid detection card of Daemiling colloidal gold is often used in food production enterprises for raw material acceptance, production process monitoring and finished product sampling inspection. It can also assist regulatory authorities to carry out market food safety risk investigation, and can also provide preliminary residue data for scientific research institutions. Its appearance has effectively improved the detection efficiency of Daemiling residues in food and built a rapid line of defense for ensuring food safety.