某有色溶液的浓度为 0. 5 μ g/ml 的 Cu 2+ 溶液,用双环己酮草酰二腙光度法于 600nm 处用 50px 比色皿进行测定, T=50.5% ,求吸光系数 K ,摩尔吸光系数 ε ,和桑德尔灵敏度分别为:
A.
K=2.0 × 10 2 L/( μ g ∙ cm) ε=1.5× 10 4 L/(mol ∙ cm) S =3.1 × 10 -3 μ g /cm 2
B.
K=2.0 × 10 2 L/(g ∙ cm) ε=1.5× 10 4 L/(mol ∙ cm) S =3.1 × 10 -3 g /cm 2
C.
K=2.9 × 10 2 L/(g ∙ cm) ε=1.85× 10 4 L/(mol ∙ cm) S =3.44 × 10 -3 μ g /cm 2
D.
K=2.9 × 10 2 L/( μ g ∙ cm) ε=1.85× 10 4 L/( μ mol ∙ cm) S =3.44 × 10 -3 g /cm 2