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Stronger specificity (low false-positive rate): because two antibodies must simultaneously recognize the target protein, nonspecific impurities rarely bind both antibodies, resulting in extremely low background interference.
High sensitivity: the enzyme-labeled secondary antibody signal amplification system enables effective detection of trace amounts of antigen.
Broad applicability: suitable for serum, plasma, cell culture supernatant, and other complex samples.
Product Configuration:
The product catalog and the corresponding standard curves/comparative assay data are presented on the official website (please refer to the relevant pages on the official website for details).
Figure: ELISA sample types / product display 1–4
Figure: ELISA standard curve data 1–2
Figure: ELISA comparative assay data
Our ELISA kits employ the classic double-antibody sandwich enzyme-linked immunosorbent assay (Sandwich ELISA) technology. Based on immunological reactions, this technology combines the specificity of antibodies with the high catalytic efficiency of enzymes. It is very widely applicable—essentially all soluble antigen–antibody systems can be detected.
SailyBio's ELISA kits are suitable for cytokine ELISA, soluble antigen detection, and other applications, covering sample types including serum, plasma, tissue homogenate, cell culture supernatant, and urine (sample types: serum, plasma, tissue homogenate, cell culture supernatant, urine, and other specimen types). The standard curve R² > 0.99, with high sensitivity and low background.
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