Figure 3.

Comparison of the sensitivity of analyte detection in single versus dual-label assay formats. (A) HBsAg detection. Eu³⁺ fluorescence data for the single label and dual-label assays are shown by the empty star and filled square symbols, respectively. Corresponding coefficients of variation for the single and dual-label assays are represented by the filled star and empty square symbols, respectively. (B) Anti-HIV-1 antibody detection. Tb³⁺ fluorescence data for the single label and dual-label assays are shown by filled circles and squares, respectively. Corresponding coefficients of variation for the single and dual-label assays are represented by the empty circles and squares, respectively.