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Molar Ellipticity Calculator

Calculate Molar Ellipticity







Formula

To calculate the Molar Ellipticity ([θ]):

[θ]=θobs×MW10×l×c

Where:

What is Molar Ellipticity?

Molar ellipticity is a measure of the degree to which a substance can rotate plane-polarized light. It is commonly used in the field of circular dichroism spectroscopy to study the chiral properties of molecules, particularly proteins and nucleic acids. The molar ellipticity is calculated from the observed ellipticity, molecular weight, path length, and concentration of the sample. It provides insights into the secondary structure and conformational changes of biomolecules.

Example Calculation 1

Let's assume the following values:

Using the formula:

[θ]=10×5000010×1×0.01=5000000

The Molar Ellipticity is 5000000.

Example Calculation 2

Let's assume the following values:

Using the formula:

[θ]=20×6000010×2×0.02=3000000

The Molar Ellipticity is 3000000.