Molar decadic absorption coefficient for phenol red?

Fatemeh Khodaparastan @Fatemeh_Khodaparastan

12 December 2013 1 5K Report

I want to measure MnP activity by using the methodology described by Kuwahara and I need the molar decadic absorption coefficient for phenol red.

How can i find this coefficient?

Francisco Solano

Be careful with the pH. The absorption is greatly dependent on the pH.

Then, look at these spectra:

http://www.google.es/imgres?imgurl=http://www.phys.rush.edu/ERios/meas_0image7.gif&imgrefurl=http://www.phys.rush.edu/ERios/measuring_intracellular.htm&h=234&w=336&sz=6&tbnid=2lw-zzNKrcF7GM:&tbnh=90&tbnw=129&zoom=1&usg=__NlgUXSrNs2qYjWxNyaM0Gbo3dHs=&docid=3D0DrIW9pov9pM&sa=X&ei=pqilUs74Ju2q0AWT3oGIDA&ved=0CEMQ9QEwAw

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