A.10μg/ml雙鏈DNA B.20μg/ml雙鏈DNA C.30μg/ml雙鏈DNA D.40μg/ml雙鏈DNA E.50μg/ml雙鏈DNA
A.220nm B.260nm C.280nm D.300nm E.450nm
A.5% B.10% C.15% D.20% E.25%