... total DNA yield are shown in Table There was no marginal association of yield with race (p The isolated DNA was also assessed for other factors indicative of DNA quality The NanoDrop measured A2 60 /A2 60 ... purification, the DNA was quantitated on a NanoDrop 8000, to measure concentration and assess the purity of the DNA through standard A2 60 /A2 80 and A2 60 /A2 30 ratios The DNA was diluted to 400 ul total, ... General Clinical Research Centers Abbott Laboratories, Amylin Pharmaceutical, AstraZeneca Pharmaceuticals LP, Bayer HealthCare LLC, Closer Healthcare, GlaxoSmithKline Pharmaceuticals, King Pharmaceuticals,...