Processing Of Raw Data - Agilent Technologies 1100 Series Reference Manual

7
Introduction to the Fluorescence Detector

Processing of Raw Data

If the lamp flashes at single wavelength and high-power, then the fluorescence
data rate is 296 Hz. That means that your sample is illuminated 296 times per
second, and any luminescence generated by the components eluted from the
column is measured 296 times per second.
If the "economy" or multi-wavelength mode is set, then the flash frequency is
74 Hz.
Figure 85 LAMP: Frequency of Flash, Fluorescence, and Phosphorescence
You can improve the signal-to-noise characteristics by disabling the "economy"
mode.
Disabling the "economy" mode will shorten the lifetime of the lamp significantly. Consider
NO TE
lifetime saving by switching off the lamp after the run is completed.
The data resolution is 20 bit at a response time of 4 seconds (default, which is
equivalent to a time constant of 1.8 seconds and appropriate for standard
chromatographical conditions). Weak signals may cause errors in
1100 Series FD Reference Manual 253