4-in-1 Screening Kit
How does it work?
The test kit is designed for the rapid detection of β-lactam, streptomycin, chloramphenicol, and tetracycline residues in milk samples at or above the established Maximum Residue Levels (MRL). It is suitable for the analysis of raw, pasteurised, and reconstituted milk powder used in dairy farms, milk collection centres, quality control laboratories, and dairy processing plants.
The kit supports compliance with regulatory limits established in the EU, India, and the USA.
This kit allows for the simultaneous detection of different classes of antibiotics. The test utilises an immunochromatographic method of analysis based on a competitive antigen-antibody reaction.
When the test strip is immersed in the sample, free antibodies bind to the immobilised antigen, while antibodies that have reacted with the antibiotics in the sample do not bind to the antigen immobilisation line and instead bind to the control line. The binding of the antibodies to the test strip results in the appearance of coloured lines, indicating the presence of specific antibiotics in the sample.
Neotest 4-in-1 test holds a certification on compliance with the declared level of detection of the residual amount of antibiotics. View certificate
In the box
Each box contains 96 test strips that could be used for 96 samples.
Contents of the box:
- 96 test strips (6 plastic tubes; each tube contains 16 test strips and one 16-well reagent strip)
- 1 vial or plastic tube with an 8-well strip containing negative control
- 1 pack with an 8-well strip containing positive controls for tetracyclines, streptomycin, chloramphenicol, and β-lactams
- 1 micropipette (200 µl) and 100 disposable pipette tips
- 1 holding frame
- User manual
Only one test strip is required per sample.
How to use it?
The test kit can be used with or without an incubator.
The test takes 4-5 minutes.
Detection limits of milk residue screening tests for beta-lactams, streptomycin, chloramphenicol and tetracyclines
| Penicillins | Popular brands | MRL, µg/l |
| Benzylpenicillin (penicillin G) | BenPen, Ospen, Yodimaspen, Benestermycin, Retarpen, Aviapen | 4 |
| Ampicillin | Principen, Omnipen, Polycillin, Totacillin | 4 |
| Amoxicillin | Amoxil, Tycil, Trimox, Polymox, Wymox | 4 |
| Oxacillin | Bactocill | 30 |
| Cloxacillin | Cloxapen, Cloxacap, Tegopen, Orbenin. | 30 |
| Dicloxacillin | Dynapen, Pathocil, Dycill | 30 |
| Nafcillin | Nafcil, Nallpen, Unipen | 30 |
| Benzathine benzylpenicillin | benzathine penicillin | 4 |
| Hetacillin | Hetacillin potassium; Versapen; Versapen-k | - |
| Piperacillin | Pipracil | - |
| Procaine benzylpenicillin | Procaine penicillin, Penicillin G Procaine, Wycillin | - |
| Ticarcillin | Ticar | - |
| Cephalosporins | Popular brand names | MRL, µg/l |
| Cefquinome | Cobactan, Ceffect, Virbactan | 20 |
| Cefacetrile | Celospor, Celtol, Cristacef | 125 |
| Cefalonium | Cefamaster, Cepravin, Kepravine, Cepha Forte, Maxalac | 20 |
| Cefazolin | Ancef, Kefzol | 50 |
| Cefadroxil | Duricef, Dromax, Evacef | - |
| Cefoperazone | Cefobid | 50 |
| Cefapirin | Cefadryl | 60 |
| Ceftiofur | Naxcel, Excenel | 100 |
| Cephalexin | Cefalexin, Keflex | 100 |
| Cefoxazole | Cefoxazole | - |
| Cefotaxime | Claforan | - |
| Cefuroxime | Zefu, Zinnat, Zinacef, Ceftin, Biofuroksym, Xorimax | - |
| Tetracycline antibiotics | Popular brands | MRL, µg/l |
| Tetracycline | Sumycin | 100 |
| Oxytetracycline | Terramycin | 100 |
| Doxycycline | Doryx, Doxyhexal, Doxylin | 100 |
| Chlortetracycline | Aureomycin, Lederle | 100 |
| Popular brand names | MRL, µg/l | |
| Chloramphenicol | Pentamycetin, Chloromycetin, Chloracol, Chloromycetin Sodium Succinate | - |
| Streptomycins | Popular brand names | MRL, µg/l |
| Streptomycin | Streptomycin Intramuscular, Streptomycin Sulfate, Pan-Streptomycin, Strepto-Fatol, Devomycin, Duphar Streptomycin, Izostreptomicina | 200 |
| Dihydrostreptomycin | Diidrostreptomicina, Ceemast Dry Cow, Nafpenzal , Depomycin | 200 |
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