Fig. 5
Correlations of measured amyloid-β 1–42 peptide (Aβ1–42) concentrations in clinical samples when using two different Aβ1–42 assays (assay developed herein or Quanterix commercial kit assay) for sample analysis (a and b) and when using two different Aβ1–42 peptide standards (Quanterix or Fujirebio) for calibration (c and d). Results from both assays were correlated (r 2 = 0.85), regardless of the calibrator used. Similarly, sample measurements with each calibrator were correlated within each assay (r 2 > 0.9). A total of 84 samples were tested