Spectra Acquisition Modes (Dad Only) - Agilent Technologies 1100 Series Reference Manual

6 Introduction to the Detector
slope of this signal (upslope, apex, downslope and baseline) and stores spectra
according to the operator's instructions. During the run the PD-peakwidth
parameter can be changed by time-programming.

Spectra Acquisition Modes (DAD only)

The spectra acquisition mode allows automatic storage of spectra during a
run. The mode can be changed during the run by time-programming.
The modes in detail are:
Table 32
Mode
none
apex
apex + baselines
apex + slopes
apex + slopes + baselines
all in peak
all 2nd in peak
all
all second
252
Spectra Acquisition Modes
Description
no spectra is stored
top of peak spectra is stored
last baseline spectrum before peak, top of peak spectrum and first
baseline spectrum after peak is stored.
spectrum in peak upslope, at top of peak and in peak downslope is
stored.
combined apex + slopes and apex + baselines.
compared to storing all spectra periodically, only stores spectra
within a peak at doubled period. Starts with last baseline spectrum
before peak and ends with first baseline spectrum after peak. If
baseline spectra are not detected, the spectrum before the first
spectrum in peak or the spectrum after the last spectrum within the
peak is stored instead.
only the 2nd spectra of a peak is stored.
periodically all spectra are stored. The period depends on the
peakwidth setting. For peakwidth setting=0 (narrowest peak), the
spectrum data rate would be 20 Hz.
periodically every 2nd spectra is stored (50 % of mode all).
1100 Series DAD and MWD Reference Manual