R18/fluorescein spectral overlap

From: Jan Brazolot (jbrazolo@plant.uoguelph.ca)
Date: Wed Sep 15 1999 - 09:11:43 EST


     I'm having a problem setting up an experiment for a researcher 
on our Elite so I thought I'd go to the experts for help! The expt. 
involves fusion between bull sperm and liposomes containing R18 or 
fluorescein. I adjust the voltage in pmt 2 for fluoresein to get a 
nice peak  but have to turn down the voltage in pmt 4 to keep it in 
the background . When I run R18 at those settings, the pmt 4 peak 
is too low. If I adjust the voltages to get optimal peaks for each 
dye separately no amount of compensation helps. Both pmt's are in 
the log scale and the peak are by no means tight. Any suggestions?

Thanks,

Jan Brazolot
Plant Agriculture Dept.
University of Guelph,
Guelph, ON
Canada



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