Charm QUAD1 Test (QUAD1)

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The Charm QUAD1 Test detects beta-lactams, quinolones, sulfonamides and tetracycline drugs in raw commingled milk.

The QUAD1 Test follows the same simple procedure and uses the same equipment as other ROSA milk tests. The milk sample is added to the test strip, incubated, and the result is read in seconds using the Charm EZ system.

ROSA tests are used by farmers, veterinarians, truck drivers, milk receiving, and milk testing laboratories because of their speed, ease of use, portability, and minimal equipment requirements.

Lower operating costs and improve transportation efficiency by clearing good milk quickly with the Charm ROSA (Rapid One Step Assay) lateral flow strips, which detect aflatoxin M1 and the most common antibiotics used to treat dairy cows. ROSA tests use patented technology to target drug sensitivities to safe and regulated levels, which prevents unnecessary rejection of milk caused by overly sensitive screening tests. The tests are easy to perform and are manufactured to test for US Safe Levels, EU MRL/ CODEX/ Customs Union maximum residue limits and multiple other country-specific requirements. Charm ROSA tests have been granted approval by regulatory authorities around the world.

Test results from ROSA strips may be read and officially recorded using the Charm EZ system, or the Charm EZ Lite system, or may be interpreted visually in an unofficial capacity, making it ideal for farm use.


  • Results in 5 minutes.
  • Detects beta-lactams, quinolones, sulfonamides and tetracyclines.
  • Conveniently print and download results.
  • Meets EU/CODEX, Chinese and Korean MRLs.
  • Uses same equipment as other ROSA tests.
  • Results can be read in the Charm EZ system.

Regulatory Info:

  • Detects beta-lactams, quinolones, sulfonamides and tetracyclines drugs to meet EU/Codex, Chinese, and Korean MRLs.

Additional information

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