Thermo Scientific GENESYS 10S Vis, User Manual

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12
Basic Concentration Measurements—Basic A-%T-C
Using Conc/Factor to Measure Concentration
Thermo Scientific GENESYS 10S Vis User Guide 51
2. Press Measure Blank .
If the Single Cell Changer is installed, remove the blank and place the standard in the cell
changer.
3. Press Units/Standard to set the units and measure the standard.
4. Press Enter Conc , enter the concentration value of the standard and press Enter .
5. Press Select Units , highlight the appropriate unit in the list and press Enter .
6. Press Measure Standard .
The instrument measures the absorbance of the standard and displays the absorbance and
calculated factor.
Using Conc/Factor to Measure Concentration
In this mode a concentration factor is used to determine the concentration of samples. The
concentration of unknown samples is determined ratiometrically from the entered factor. The
measurement can be expressed mathematically as
(Abs / %T of Sample) * Factor = Concentration of Sample
where the factor is entered, the Abs/%T of the sample is measured, and the sample
concentration is calculated.
Y To use Conc/Factor to measure concentration
1. If necessary, press Change Mode to switch to the Conc With Factor mode.
2. Press Units/Factor to set the factor and select the units.
3. Press Enter Factor .
4. Type the desired factor value.