18楼: Originally posted by Fragrance1 at 2021-09-26 08:33:27
absorbance-吸光度，简写A；Transmittance-透光率，简写T，A = log（1/T）；absorption-吸收率，简写A' ; refractivity-折射率，简写R；A+R+T=1中的A指的是A'，即吸收率+透光率+折射率=1。
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19楼: Originally posted by 1592203609 at 2021-09-26 08:35:51
absorbance是吸光度，就是入射光强度与透射光强度的比值再取对数即lg(I0/I1)
absorption是吸收率，即（入射光强度-透射光强度-反射光强度）/入射光强度，即A

21楼: Originally posted by bgsister at 2021-09-26 22:36:38
请问通过UV-vis测出来absorbance 怎么计算出absorption?
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20楼: Originally posted by bgsister at 2021-09-26 22:34:34
谢谢回复，请问absorbance 怎么转化成absorption?
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22楼: Originally posted by 1592203609 at 2021-09-27 08:25:02
你得测透射率和反射率，再相减...

23楼: Originally posted by Fragrance1 at 2021-09-27 09:51:47
一般计算时折射率R忽略，通过公式A'(吸收率)+T+R=1，得到T(透射率)=1-A'；最后根据公式A(吸光度)=lg(1/T)=-lgT=-lg(1-A’)。
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