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Figure 4 | BMC Biophysics

Figure 4

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

Figure 4

Comparison of dye and E. coli OD measured on 5 different spectrophotometers. A) Measurements of the same crystal violet solution (λmax ~ 600 nm) and E. coli culture measured on 5 different spectrophotometers at well below saturating absorbance concentrations. B) Serial dilution of the E. coli sample on the two most disparate spectrophotometers to demonstrate linear correlation of OD with concentration.

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