Xylem photoLab 6600 UV-VIS - Manual (Page 89)

photoLab
®
6600 UV-VIS Operation
89 ba75848e01 08/2009
* necessary inputs
** default: Auto
Scaling: Auto** During measurement, the instrument adjusts the
axis scaling (minimum and maximum value of the
axis) to the measured values. The entire curve is
always visible.
Scaling:Manual
Y-axis min
Y-axis max
The axis scaling (minimum and maximum value of
the axis) is set manually.
Measurements/interval 1/interval or Max/interval
Here you define how many measurements are
carried out per interval.
This setting has an impact on the calculation of the
slope of the individual intervals (see section
4.9.6).
Catalytic activity Yes or No
Here you determine whether the catalytic activity
should be calculated.
The catalytic activity is a measure for the amount
of substance that is converted per time unit.
To accelerate the substance conversion, a
catalyst or enzyme (biological catalyst) is used in
most cases.
Catalytic activity:Yes
Factor
Unit
Resolution The catalytic activity or enzymatic activity is
calculated from the slope of the curve.
Here you can enter the value for Factor.
The calculated value for the catalytic activity is
displayed in the menu, [Edit] / Slope, together with
the unit and resolution selected here.
Input field Possible entries
Cat. A. = mean value Slope [
Δ
/min] * Factor