Quantitative ciprofloxacin on-site rapid detections using quantum dot microsphere based immunochromatographic test strips

•A quantitative ciprofloxacin (CIP) immunochromatographic test strip is designed.•It is very sensitive with an extremely low detection limit of 0.05 ng/mL.•It has wide linear detection range supporting quantitative CIP detection.•It supports automatic, rapid and cost-effective CIP detection.•It is proved with good selectivity, reproducibility and stability.