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Table 2 Quantity and quality of DNA isolated from old human blood paper cards using different reagents

From: A reliable and effective method of DNA isolation from old human blood paper cards

  DNA quantity DNA quality
Methods (ng/ml) A260/A280 A260/A230
  (min, max) (min, max) (min, max)
DN 131 103.3 ± 8.6 2.07 ± 0.6 0.06 ± 0.01
(−64.9, 566.9) (−6.64, 52.18) (−0.03, 0.37)
Tris–HCl 190.0 ± 6.1 1.5 ± 0.01 0.5 ± 0.01
(62.7, 397.7) (1.17, 1.72) (0.35, 0.75)
TE 183.5 ± 6.4 2.08 ± 0.1 1.06 ± 0.1
(54.2, 444.8) (1.30, 8.90) (0.4, 6.25)
H2O 203.5 ± 9.0 1.5 ± 0.01 0.4 ± 0.01
  (38.8, 489.2) (1.23, 1.68) (0.22, 0.82)
  1. In each space, values are represented as mean ± standard error. The minimum (min) and maximum (max) values are shown in parenthesis.