Table 1.

Concentration and A260/A280 ratio of DNA extracted from cryopreserved and fresh clotted blood and EDTA-anticoagulated blood.

SamplesDNA concentration, mg DNA/L blood1A260/A280 ratio1
EDTA-anticoagulated blood (10)260.6 ± 12.61.96 ± 0.17
Fresh clotted blood (10)261.5 ± 11.91.87 ± 0.19
Cryopreserved clotted blood (14)217.5 ± 2.831.76 ± 0.08
  • 1 Mean ± SD.

  • 2 Number of samples.

  • 3 P <0.05.