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Determination of the concentration

The photometric concentration measurement of a sample is carried out with a calibration curve. For this purpose the absorptions of references with known concentrations are measured. These absorption data were plotted against the concentrations and the data points were interpolated with an adequate fitting curve. The originated calibration curves normally follow the Lambert-Beer law, i.e. they are lines through origin.

Calibration curve for concentration measurement

Calibration curve for concentration measurements

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