Agilent Technologies G1314B, User Manual

Page: 71 / 208

Agilent 1260 Infinity VWD User Manual 71
Using the Detector
4
Special Settings of the Detector
Peakwidth Settings
1 To change the Peakwidth settings select Setup Detector Signals .
2 In the section Peakwidth (Responsetime) click on the drop- down list.
3 Change the Peakwidth according to your needs.
N O T E
Do not use peak width shorter than necessary, see also “Set the Detector Parameters” on
page 78.
Figure 29 Peakwidth Setting
Peakwidth enables you to select the peak width (response time) for your
analysis. The peak width is defined as the width of a peak, in minutes, at half
the peak height. Set the peak width to the narrowest expected peak in your
chromatogram. The peak width sets the optimum response time for your
detector. The peak detector ignores any peaks that are considerably narrower,
or wider, than the peak width setting. The response time is the time between
10 % and 90 % of the output signal in response to an input step function. When
the All spectrum storage option is selected, then spectra are acquired
continuously depending on the setting of the peak width. The time specified by
the peak width is used as a factor in the acquisition of spectra. The acquisition
time for one spectrum is slightly less than the peak width divided by 8, see
Table 9 on page 72 and Table 10 on page 72.
Limits : When you set the peak width (in minutes), the corresponding response
time is set automatically and the appropriate data rate for signal acquisition is
selected as shown in
Table 9 on page 72 and Table 10 on page 72.