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Table 4 Quantification results of exogenous DNA of the different isolation methods using DNA Fetal Kit® RHD CE (BIORAD®)

From: Qualitative and quantitative comparison of cell-free DNA and cell-free fetal DNA isolation by four (semi-)automated extraction methods: impact in two clinical applications: chimerism quantification and noninvasive prenatal diagnosis

  MagNA Pure 24 System IDEAL LabTurbo 24 AB Chemagic 360D
Ct exonegous DNA 35.61 33.65 33.08 37.22
35.61 34.37 32.52 35.64
36.24 33.79 32.59 38.39
35.42 33.42 33.25 38.66
34.66 33.32 32.86 39.38
Ct mean 35.51 33.71 32.86 37.86
SD 0.57 0.41 0.31 1.46
CV 2% 1% 1% 4%
Ct Min 34.66 33.32 32.52 35.64
Ct Max 36.24 34.37 33.25 39.38
p < 0.005