Thermo Scientific Evolution 200 Series User Manual page 79

Thermo Scientific
Instrument Tab for Quant
Feature
Mode
Data mode
Smooth (Scan only)
Derivative (Scan only)
Start wavelength and End
wavelength (Scan only)
Bandwidth
Integration time
Data interval (Scan only)
Scan speed (Scan only)
Estimated time (Scan
only)
Table of wavelengths
(Fixed only)
Related Topics
Quant
Click Settings in Quant
the right pane.
Description
Specifies Scan or Fixed data acquisition.
Y-axis format for acquired data.
For Abs*Factor (Scan only), set Factor to a value by which to
multiply measured absorbance values.
Select the desired degree of smoothing (if available for the
selected data mode and Derivative setting). Smoothing reduces
noise in the data but can also remove some spectral features
such as small peaks, valleys and shoulders. See
Smoothing.
Select the desired derivative order for acquired data (if available
for the selected data mode).
Starting and ending values of the wavelength range for
acquiring data.
A larger spectral bandwidth increases the amount of energy that
passes through the sample. Increasing the bandwidth can
improve the signal-to-noise ratio; however, a larger spectral
bandwidth decreases the ability to resolve closely spaced spectral
features.
How long the system acquires and averages data at each data
interval (for Scan) or at each measured wavelength (for Fixed).
Increasing the integration time improves the signal-to-noise
ratio but reduces the scan speed.
Difference in wavelength between two consecutive data points.
Wavelength range covered per unit time. Varies inversely with
integration time. Increases as the data interval increases.
Estimated duration of data acquisition. Increases as integration
time increases and as the data interval decreases. Varies inversely
with scan speed.
Shows the analysis wavelength(s) entered on the
tab.
2
INSIGHT Software
to display the Instrument tab in
About
Measurement
Evolution 200 Series User Guide
Operation
65