I try to study the effect of UV radiation on blood by using a spectrometer.
As a tool to stat with I will measure absorption spectrum of normal blood and for the blood the irradiation with UV.
Measuring absorption spectrum of blood is much easier said then done. Blood is not a true solution, rather a colloid, so it will have very strong scattering. On top of that whole blood is very unstable thing when taken out of an organism, it tends to clot very quickly.
Bottom line, it's unlikely there is a reliable way to measure absorption spectrum of whole blood. It is though obvious that it is dominated by hemoglobin, and spectrum of that protein you can easily google.
I wish this website can help you.
http://www.npsg.uwaterloo.ca/data/blood.php
They have collected molar absorption coefficients of different blood components and you can calculate the whole extinction coefficient of a solution of them by knowing the molar concentrations of the solution components.
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