β-lactamase Rapid Test Dipsticks

Principle

The β-lactamase rapid test dipstick is based on competitive inhibition immuno-chromatographic principle. When the β-lactamase residue in sample is higher than or equal to the detection limit, it will combine with labeled antibody, then inhibit the combination between colloidal gold antibody coated antigen on T line, making T line lighter than C line or T line invisible. Otherwise, T line is darker than C line or has same color with C line. No matter whether there is β-lactamase residue in sample, C line is visible.