(9) Internal Revenue Code means the Internal Revenue Code of 1986 in effect for the federal tax year beginning on January 1, 2007, not including any changes made by federal law after that date, and any regulations adopted under that code applicable to that period.
Absorbance spectroscopy, commonly referred to as spectrophotometry, is the analytical technique based on measuring the amount of light absorbed by a sample at a given wavelength.
How to Calculate Molar Absorptivity. Molar absorptivity, also known as the molar extinction coefficient, is a measure of how well a chemical species (chemically identical molecules) absorbs a given wavelength of light.It is commonly used in chemistry and should not be confused with the extinction coefficient, which is used more often in physics.ow to Calculate Molar Absorptivity. Molar absorptivity, also known as the molar extinction coefficient, is a measure of how well a chemical species (chemically identical molecules) absorbs a given wavelength of light.