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Table 7 Summaries of intra- and inter-assay precision for repeated testing of three quality control samples and one plasma pool

From: A digital enzyme-linked immunosorbent assay for ultrasensitive measurement of amyloid-β 1–42 peptide in human plasma with utility for studies of Alzheimer’s disease therapeutics

 

Aβ1–42 (pg/ml)

Sample

QC1

QC2

QC3

Plasma poola

Intra-assay means (n = 4)

20.5

4.89

0.696

5.32

20.0

4.87

0.628

5.00

19.6

4.76

0.745

5.32

Intra-assay CV%

2

2

1

1

4

1

7

1

0.4

0.1

8

3

Inter-assay means (n = 3)

20.0

4.84

0.689

5.20

Inter-assay CV%

2

2

8

4

  1. Aβ amyloid-β, CV% Coefficient of variation percentage, QC Quality control
  2. a n = 18 for plasma pool; the reported Aβ1–42 levels in plasma pool were corrected for four-fold sample dilution
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Alzheimer's Research & Therapy

ISSN: 1758-9193