What is the Dichloroquinolinic Acid Colloidal Gold Rapid Detection Card?

2025-08-18

In agricultural production, the rational use of herbicides is crucial to ensure crop yield. Dichloroquinolinic acid, as an efficient selective herbicide, is often used to control weeds such as barnyard grass in rice fields. However, if used improperly or in excess, its residues may affect the sensitive crops of subsequent crops, and even pose a threat to the quality and safety of agricultural products. Therefore, the rapid and accurate detection of Dichloroquinolinic acid residues has become an important link in agricultural production and supervision. Today we want to know, it is the tool that plays a key role in this field - Dichloroquinolinic Acid Colloidal Gold Rapid Detection Card.

Simply put, Dichloroquinolinic Acid Colloidal Gold Rapid Detection Card is a rapid detection product based on colloidal gold Its core principle is to use the colloidal gold-labeled dichloroquinolinic acid antibody to bind antigen-antibody specifically to the dichloroquinolinic acid residue in the sample at the detection line position. If there is a target in the sample, it will compete with the colloidal gold marker to bind the antibody on the detection line, causing the color of the detection line to become lighter or disappear; conversely, if there is no target in the sample, the detection line will develop color, forming a negative result of "two lines". By comparing with the quality control line, the detection can be completed within 10-15 minutes, and the presence of dichloroquinolinic acid residue can be intuitively determined. The advantages of this detection card

are very prominent. The first is "fast", which does not require complex instruments and can be operated quickly in the field or laboratory, greatly shortening the detection cycle; the second is "stool", which only needs to take a small amount of samples (such as rice leaves, brown rice, etc.) during use, and then drop it into the detection card through extract treatment, which can be used without professional training; The third is "quasi", with a sensitivity of up to 0.1mg/kg, which can effectively identify low-concentration residues, and has strong specificity and no cross-reaction with other similar substances; in addition, the cost is low, making it suitable for large-scale screening use.

In the application scenario, the dichloroquinolinic acid colloidal gold rapid detection card is widely used in agricultural production, agricultural product testing institutions and market supervision departments. For example, farmers can quickly detect whether there is a residual risk in crops after using herbicides; testing institutions can use it as a preliminary screening tool to perform quick filtering on a large number of samples to reduce the workload of subsequent precision instrument testing; regulatory authorities can use it to conduct rapid sampling of agricultural products in the market circulation link to find unqualified products in time.

Of course, attention should also be paid to when using: samples should be handled in strict accordance with the instructions to avoid impurity interference; test cards should be stored at the specified temperature to prevent failure; reading results should be controlled within 10-15 minutes, and timeout may affect the judgment.

In general, the dichloroquinolinic acid colloidal gold rapid detection card has become a practical tool to solve the problem of dichloroquinolinic acid residue detection by virtue of its fast, convenient and accurate characteristics, and provides strong support for ensuring the quality and safety of agricultural products and promoting the sustainable development of agriculture.