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Figure 5 | BMC Biophysics

Figure 5

From: Improving accuracy of cell and chromophore concentration measurements using optical density

Figure 5

Demonstration of the variation in absorption spectrum among diverse microorganisms. Absorption spectra of a wide variety of microorganisms, obtained on a Spectramax photometer measured at ODR ~1 are grouped as follows: A) Spectra of green photosyntyetic cultures normalized to an OD550 of 1.0, B) Spectra of un-pigmented cultures normalized to an OD600 of 1.0, C) Spectra of red cultures were normalized to an OD660 of 1.0.

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