fluorescence emission spectra

Mariella parisi at fis.unipr.it
Mon Oct 21 08:18:06 EST 2002

I've a problem . From theory I know that emission spectra are
indipendent of excitation wavelenght. 
I've done  emission spectra of 1-aminoanthracene at pH 7 in phosphate
buffer (0.1% EtOH) at 2 different excitation wavelenght and I found 2
different spectra with different maximum wavelenghts. Why? Can it be
related to the fact that there can be 2 different states of this

Thanks in advance


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