- Rapid strip test method – 10 minutes
- No sample preparation required
- Low detection limit - 1-2 ppb
- High reproducibility
- Interpretation of results can be done by eye or using the QuickSTAR™ Strip Reader
Rapid Screening for Ractopamine in Urine
The AuroFlow™ Ractopamine Strip Test Kit is a qualitative and rapid lateral flow assay designed to detect ractopamine residues in swine urine. This test is designed for rapid field use or for reference lab settings.
The assay uses a competitive colloidal gold based format. The swine urine sample (200 μL) is added to a clear plastic reaction vessel. The test strip is then inserted into the sample well with the arrows pointing downward, initiating capillary flow up the strip. Any colloidal gold particles that are not complexed with ractopamine present in the swine urine will bind to their respective test line, forming a signal (red line) at that position. Each test strip is imprinted with one test line and one Control line (C-line). If the binding protein on the gold particle has engaged with ractopamine present in the urine sample, the gold particle will flow past the test line and reach the C-line. For visual interpretation of the test results, any test line signal intensity that is stronger than the signal at the C-line indicates a negative result. Signal at the test line which is equal or less intense compared to the C-line indicates the presence of ractopamine in the swine urine. The greater the reduction in signal intensity at the test line, the greater the concentration of ractopamine present in the swine urine.
This kit is manufactured to the international quality standard ISO 9001:2008.
The AuroFlow Ractopamine Strip Test Kit has the capacity for 24 (Cat # 1119-01) or 96 (Cat # 1119-02) determinations. The shelf life is 24 months when the kit is properly stored.