Help: Soret and hemoglobin absorption.

[Neal Prakash]

Hello,

I am writing a historical review on intrinsic signal optical imaging and 
am having great difficulty finding any information about Soret.

All I know is that he was the first to examine the absorption spectrum of 
hemoglobin. I need dates and references for his work. I think he lived 
from roughly 1750-1850.

Any info is appreciated!

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-Neal Prakash 
Department of Psychobiology, College of Medicine
http://meded.med.uci.edu:80/~nprakash/neal.html