Beta, tetra, cefalexin, BTCex 3in1 rapid test kit

Product Code
Kit Principle
Test Type



β-lactam antibiotics, tetracyclines and cefalexin are widely used natural or artificial antibiotics in animal or human clinical practice, side effects of which include severe allergy, etc. Maximum Residue Level/Limit (MRL) has been established against these two classes of drugs in USA, EU, Japan, China and many other countries.

Key facts of the beta, tetra, cefalexin rapid test kit

  • Ready to use kits for farmers, truck drivers, etc
  • No incubation required
  • Result visible in 10min
  • Receptor assay with broad-specificity to all β-lactams, tetracyclines and cefalexin.
  • EU MRL / US MRL can be met in different specifications

Detection Limit of the kit

β-lactams MRL(μg/L) LOD(μg/L) Cephalosporins MRL(μg/L) LOD(μg/L)
Penicillin G 4 2-4 Cefquinome 20 15-20
Ampicillin 4 3-4 Cefacetrile 125 100
Amoxicillin 4 3-4 Cefalonium 20 18-20
Oxacillin 30 6-8 Cefazolin 50 50
Cloxacillin 30 6-8 Cefoperazone 50 40-50
Dicloxacillin 30 6-8 Cephapirin 60 50-60
Nafcillin 30 20-30 Ceftiofur 100 90-100
Tetracyclines MRL(μg/L) LOD(μg/L) Tetracyclines MRL(μg/L) LOD(μg/L)
Tetracycline 100 40-60/8-10 Doxycycline 100 40-60/8-10
Oxytetracycline 100 80-100/8-10 Chlortetracycline 100 100/8-10
Cefalexin 40-50ppb

This product utilizes the high-affinity antibodies and captures protein against cefalexin, tetracyclines and beta-lactams antibiotics, which can easily identify these potentially hazardous substances in milk without any instrument.

Kit Components

  • Tritest BTC Test Strip, 96pcs
  • Microwell reagent, 96wells
  • Plastic Pipette, 96pcs