What is the rapid detection card for sulfa drugs colloidal gold in poultry eggs?

In the production and distribution of poultry eggs, sulfonamides are commonly used as antimicrobial agents. If they are used improperly or added in excess, they can easily lead to drug residues and pose a potential threat to consumer health. Therefore, the rapid and accurate detection of sulfonamide drug residues in poultry eggs has become an important link in ensuring food safety. And the rapid detection card for sulfonamides in poultry eggs colloidal gold is an efficient detection tool to meet this demand.

From a principle point of view, the detection card is based on immunochromatography technology, with colloidal gold-labeled sulfonamide drug antibodies as the core. When the sample (such as poultry egg homogenate extract) is dropped into the detection card and added to the sample hole, it moves upward under capillary action. If there is a sulfonamide drug residue in the sample, it will bind to the colloidal gold-labeled antibody and prevent it from binding to the sulfonamide drug-carrier protein on the detection line (T-line), so that the color of the detection line becomes lighter or disappears; if there is no residue, the colloidal gold-labeled antibody will bind to the T-line, showing a clear red band. The C-line is a quality control line, and it will develop color regardless of whether there is a residue, ensuring that the detection process is effective.

Compared with traditional detection methods, the colloidal gold rapid detection card has significant advantages. First, the speed is fast, the whole detection process only takes 10-15 minutes, no need for complex instruments, and can be completed on site; second, the operation is simple, no professional training is required, just follow the instructions for sample processing and sample addition; third, the accuracy is high, the sensitivity of the detection card can reach ng/mL level, which can effectively identify trace residues; fourth, the cost is low, suitable for batch detection, and can be widely used in scenarios such as grassroots supervision, enterprise self-inspection, and market sampling.

In practical applications, the detection card can help regulatory authorities quickly screen for problematic eggs in the market and intercept substandard products in a timely manner; guide enterprises to carry out quality control in the production and processing process to reduce the risk of residues from the source; at the same time, it can also provide consumers with more reliable food safety protection. With the continuous optimization of technology, the application of colloidal gold rapid detection cards in the field of egg quality and safety will be more extensive, contributing an important force to the protection of "safety on the tip of the tongue".