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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.  
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.  


[[Image:Tablebeerlaw.png|100px|left|]]
[[Image:Tablebeerlaw.png|400px|left|]]


== References ==
== References ==


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