BetaStar® S Combo

Item No.  BSC050

This item has shipping restrictions.
$244.50 each
$514.00 each
In stock
Out of stock
Expect availability 07/15/2022
Minimum quantity required: 1
This item must be ordered in multiples of one case. Quantity per case: 1
BetaStar® S Combo is an assay for the rapid detection of beta-lactam and tetracycline antibiotics in raw, commingled milk at or below established Maximum Residue Levels (MRL). The test utilizes a separate test line to detect the sum of the parent drug ceftiofur (a beta-lactam) and its metabolites. BetaStar S Combo is designed to work with the Raptor® Integrated Analysis Platform and other AccuScan readers. The test can also be read visually.
Brand BetaStar®
Analyte Beta-lactams, Tetracyclines
Platform Lateral Flow
Result Type Qualitative
Approvals Validated at ILVO; MAPA
Time to Result 5
Quantity per Package 50 tests

The BetaStar S Combo 50 kit contains:

  1. 50 test strips
  2. 50 sample tubes
  3. 50 disposable 400 μL poly-pipettes

The BetaStar S Combo Raptor 100 kit contains:

  1. 100 test strips
  2. 100 disposable Raptor cartridges
  3. 100 disposable 400 μL poly-pipettes
  1. Heater block/incubator capable of maintaining a temperature of 47.5 ± 1°C
  2. Raptor Integrated Analysis System (Neogen item number: 9680)


The milk is wicked through a reagent zone, which contains antibodies and receptors conjugated to colloidal gold particles. If beta-lactams, tetracyclines, or desfuroylceftiofur are present, they will be captured by their particle-antibody complex. The drug-antibody-particle complex then is wicked onto a membrane, which contains a separate zone for each drug conjugated to a protein carrier. These independent zones capture any uncomplexed drug antibody, allowing the particles to concentrate and form a visible line. As the level of a particular drug in the sample increases, free drug molecules will complex with the antibody-gold particles. This allows less antibody-gold to be captured in the test zones. Therefore, as the concentration of a drug in the sample increases, the test line density decreases. The membrane also contains a control zone where an immune complex present in the reagent zone is captured by an antibody, forming a visible line. The control line will always form regardless of the presence of the drug, ensuring the strip is functioning properly.



Our customers’ success is our shared success. Our experts are ready to train you and your team on our solutions, so you can rest easy knowing procedures are performed properly and yield accurate results. In addition, we provide certificates upon completion of training to provide you with the documentation needed for audit traceability.



Our experts are here to help. If you need information beyond what is provided in Validation Reports under the Documents tab, please contact us and we will be happy to assist you. Learn more