I'm doing a science project about the antioxidant activity of red wines from my country. This days, I was going through the theoretical part ( the basics of spectrophotometry, photometric analysis ect. ) and I'm currently at the Beer-Lambert Law. I'm would like to know(adsbygoogle = window.adsbygoogle || []).push({}); the whole mathematical paththat is used so that starting from this two equations:A = 2 - logand_{10}%TA = [tex]\epsilon[/tex]bc,

where:

Ais absorbance, ( no units )

Tis transmittance, ( no units )

[tex]\epsilon[/tex]is molar absorbtivity, ( L mol^{-1}cm^{-1})

bis the length of the sample ( path length of the cuvette ) ( cm ) and

cis the concentration of the compound in solution ( mol L^{-1})

the equation%T = eis deduced.^{-[tex]\epsilon[/tex]bc}

note: the molar absorbtivity is represented by the letter epsilon from the Greek alphabet and it's not superscripted as it looks like.

Thanks in advance

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# I need help with spectrophotometry ( The Beer-Lambert Law )

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