Beta-Lactams+Tetracyclines, BT Combo Test Kit
Beta-Lactams+Tetracyclines, BT Combo Test Kit


Product Code


Test Type

Kit Principle

β-lactam antibiotics and tetracyclines 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 bt combo test

  • Ready to use kits for farmers, truck drivers, etc
  • No incubation required
  • Result visible in less than 10min
  • Receptor assay with broad-specificity to all β-lactamas, including penicillins and cephalosporins
  • EU MRL / Russian 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 - 40-60/8-10
Oxytetracycline 100 80-100/8-10 Chlortetracycline 100 100/8-10

This product is in compliance with Russian Federation National Standard, GOST R 53774-2010 Milk and milk products. Enzyme immunoassay methods for determining the presence of antibiotics. ГОСТ Р 53774-2010 Молоко и молочные продукты. Иммуноферментные методы определения наличия антибиотиков
for operations of the test, please refer to the kit insert. 

for operations of the test, please refer to the kit insert, which can be provided on request. For CIS countries, please choose LOD of tetracyclines at 8-10bbp when order. For other countries, please choose 40-60ppb combo kit. The current CODEX MRL, CHINA MRL, EU MRL, etc for tetracyclines are 100ppb in total.

Ringbio also has the following Beta-lactams, tetracyclines related products,

Kit Components

  • β-lactam Test Strip, 96pcs
  • Microwell reagent, 96wells
  • Plastic Pipette, 96pcs

Certificate Or Validation

logo-ILVO ILVO, Belgium

logo-VNIMI Russian Research Institute of the Dairy Industry-VNIMI

Related files & videos

** The files are only for reference. Please always check the instruction in the kit.