What is the digol colloidal gold quick detection card?

In agricultural production and food processing, digol is a common organophosphorus pesticide. Although it can effectively control pests and diseases, excessive residues can pose a threat to human health. In order to quickly and accurately detect the content of digol in food, digol colloidal gold rapid detection card came into being.

Digol colloidal gold rapid detection card is a rapid detection product based on colloidal gold immunochromatography technology. It is mainly composed of sample pad, binding pad, reaction film, absorbent paper and PVC board. Its core principle is to use antigen-antibody specific binding reaction: when the sample (such as the extract of fruits and vegetables) is added dropwise to the sample hole of the detection card, it will pass through the binding pad and reaction film in turn. The colloidal gold marker on the binding pad (usually the colloidal gold-labeled logol antibody) binds to the logol antigen in the sample to form a complex; when the composite flows to the detection line (coated with the logol antigen analog) and the quality control line (coated with the antibody of the colloidal gold antibody) areas on the reaction film, the detection line will be colored by the antigen-antibody reaction, and the quality control line will be used to verify whether the detection card is valid. By observing the color development of the two lines, it is possible to quickly determine whether the sample contains logol and the approximate residual concentration.

As a rapid detection tool, the logol gold rapid detection card has many advantages. The first is the fast detection speed, the entire detection process usually only takes 10-15 minutes, without waiting for a long test schedule; secondly, the operation is simple, the user does not need professional experimental skills, follow the instructions to complete the detection; secondly, the accuracy is high, the detection sensitivity can reach the national standard limit, can effectively distinguish between qualified and excessive samples; in addition, the detection card is small in size, easy to carry, and can achieve rapid on-site detection, especially for the grass-roots agricultural sector, food processing enterprises and market regulators for food raw materials and finished products rapid screening.

In practical applications, digol gold rapid detection card is widely used in the detection of digol residues in various foods, such as fruits (apples, pears, grapes, etc.), vegetables (vegetables, cucumbers, tomatoes, etc.), grains (wheat, corn, etc.) and related processed products. Through timely screening of foods that exceed digol standards, toxic and harmful substances can be effectively reduced to enter the market, providing important technical support for ensuring the safety of public diets.

In short, digol gold rapid detection card has become an indispensable tool in the field of food safety testing with its fast, simple, accurate and portable characteristics, and plays an important role in guarding the "safety on the tip of the tongue".