Drug Residue Detection

Drug Residue Detection


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Drug residues can directly or indirectly affect human health and damage environmental ecosystems. In order to maintain the healthy and stable development of human beings and the environment, it is necessary to establish a rapid and accurate drug residue detection system to achieve source prevention. Alfa Chemistry's colloidal gold immunochromatography technology can be applied to the detection of a variety of residual drugs. Our detection technology is not only easy to operate, low cost, but also has good stability.

Drug Residue Detection

Our Detection Range

Alfa Chemistry can detect drug residues in various types of samples such as food, beverages, animal and human body fluids and tissues. The figure below shows the composition and principle of colloidal gold test strip.

(A) The composition of colloidal gold test strip, (B) Principle of the CG test strip. Fig.1 (A) The composition of colloidal gold test strip; (B) Principle of the CG test strip.[1]

The scope of our drug testing includes but is not limited to: quinolones (floxacin, anthranofloxacin, danofloxacin, sarafloxacin, ofloxacin, ciprofloxacin, oxquinic acid, etc.), sulfonamides Drugs (sulfadiazine, sulfathiazole, sulfachloropyridazine, sulfaquinoxaline, etc.), tetracycline drugs (oxytetracycline, chlortetracycline, etc.), non-steroidal anti-inflammatory drugs, aminoglycosides (kanamycin, bromycin, streptomycin, gentamicin, neomycin, etc.), macrolides (erythromycin, spiramycin, tylosin, tilmicosin, etc.), bacitracin zinc, β-lactamase, nitrobenzonitrile, cyromazine, melamine, azapiperone, cephem, nitrofurazone, ketoconazole, etc.

Technical Advantages

  • Fast detection, no time-consuming
  • Strong identification of drugs and high sensitivity
  • Easy to operate, technicians can complete the test independently according to the instructions
  • The equipment is simple, and the detection can be completed alone without auxiliary instruments
  • Low requirements for testing environment, testing and storage at room temperature

How we do?

  • Alfa Chemistry experts develop gold-labeled antigen-antibody and main materials required for reagent strip composition for the drug to be tested.
  • Alfa Chemistry provides technical support such as sample processing, detection methods and reference ranges.
  • Alfa Chemistry can analyze detection results in combination with minimum detection limits, specificity studies and methodological comparisons.


  1. Lin L, et al. A colloidal gold immunochromatography test strip based on a monoclonal antibody for the rapid detection of triadimefon and triadimenol in foods. Food and Agricultural Immunology. 2020, 31(1):475-488.
  2. Lin L, et al. Colloidal Gold Immunochromatographic Strip Assay for the Detection of Azaperone in Pork and Pork Liver. ACS Omega. 2020.

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