Genomic DNA was purified from 48 x 350 µl samples (white-cell count 4.9 x106 cells/ml) of human whole blood using the EZ1 DNA Blood 350 µl Kit. Blood samples were taken from 1 individual. Average yields from each run of 6 samples are shown. DNA yield was quantified by absorbance measurements (A260) with background correction. Purified DNA was eluted in 200 µl RNase-free water. Average yield was 8.2 µg (S.D. = 0.23). Average DNA purity (A260/A280) was 1.85 (S.D. = 0.01).