Agilent Technologies 1260 User Manual page 124

6
How to optimize the Detector
Optimizing for Sensitivity, Selectivity, Linearity and Dispersion
Figure 53
A wide bandwidth has the advantage of reducing noise by averaging over a
wavelength range — compared to a 4 nm bandwidth, the baseline noise is
reduced by a factor of approximately 2.5, whereas the signal is about 75 % of a
4 nm wide band. The signal-to-noise ratio for a 30 nm bandwidth is twice that
for a 4 nm bandwidth in our example.
Figure 54
124
Optimization of Wavelength Setting
Influence of Bandwidth on Signal and Noise
Agilent 1260 Infinity DAD and MWD User Manual