A.濃度5%的氨基磺酸銨0.2m1 B.濃度10%的氨基磺酸銨0.2m1 C.濃度5%的氨基磺酸銨2.0m1 D.濃度10%的氨基磺酸銨0.2ml
A.10 B.20 C.15 D.5
A.50μg/L B.50mg/L C.100μg/L D.100mg/L