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. 2007 May;73(9):3040–3048. doi: 10.1128/AEM.02823-06

TABLE 2.

CT values obtained in PCR comparing duplicate samples with similar DNA concentrations extracted with 60, 75, or 90 μl of paramagnetic particles per sample

DNA concn (ng/μl) Vol of paramagnetic particles (μl/sample) CT value
Salmonella/FAM IAC/HEX
0.1 60 22.1 22.2 27.0 27.0
0.1 60 22.2 22.3 26.9 26.8
0.1 60 22.7 22.8 27.1 26.6
0.1 75 21.8 21.9 26.9 26.8
0.1 75 22.7 22.5 26.6 26.5
0.1 75 21.9 21.9 26.9 26.6
0.1 90 21.9 21.6 26.9 26.7
0.1 90 21.8 21.9 26.6 26.3
0.1 90 21.8 21.8 26.5 26.4
0.05 60 24.5 24.6 26.6 27.1
0.05 60 23.8 23.7 26.8 27.1
0.05 60 24.1 24.3 26.5 26.9
0.05 75 23.6 23.5 27.3 26.6
0.05 75 23.1 23.1 26.7 26.9
0.05 75 24.5 24.4 26.8 26.5
0.05 90 23.9 23.9 26.7 26.8
0.05 90 23.3 23.4 26.8 27.2
0.05 90 23.2 23.4 27.2 26.5
0.01 60 26.9 26.9 27.1 26.8
0.01 60 26.7 26.3 26.4 26.6
0.01 60 26.9 27.6 27.0 27.4
0.01 75 24.8 24.9 26.8 26.7
0.01 75 26.3 26.8 26.8 27.2
0.01 75 25.0 24.9 26.8 27.0
0.01 90 24.8 25.2 26.5 26.7
0.01 90 25.7 25.7 27.1 26.5
0.01 90 24.7 24.9 26.9 27.2
0.005 60 26.7 26.6 26.7 26.7
0.005 60 27.2 27.4 27.0 26.8
0.005 60 27.3 27.3 26.9 27.1
0.005 75 26.6 26.6 27.0 26.5
0.005 75 26.0 26.3 26.7 26.8
0.005 75 27.8 27.6 27.1 27.2
0.005 90 26.2 26.2 27.4 26.8
0.005 90 25.8 25.6 26.9 26.8
0.005 90 26.3 26.3 27.0 26.8