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[[Image:Absorbancecoldph7try.png|800px|left|]]
[[Image:Absorbancecoldph7try.png|800px|left|]]


Using Beer-Lambert law and accepting the approximation of the Molar Extinction Coefficient for PNPA hydrolysis at 428.7nm as the same value as
A linear equation of y=9.275x10^-7x+1x10^-4 with a coefficient of determination of 0.8492 was calculated using linear regression.  


[[Image:Concentrationcoldph7.jpg|800px|left|]]
[[Image:Concentrationcoldmolarabsorb12000ph7.png|800px|left|]]
 
Absorbance values can be transformed to units of concentration via the Beer-Lambert law. We must accept the approximation of the Molar Extinction Coefficient for PNPA hydrolysis at 428.7nm as 12000 M^-1 cm^-1. An example calculation is supplied in the table.


== References ==
== References ==


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