Agilent Technologies 1260 User Manual page 132

6
How to optimize the Detector
Optimizing Selectivity
Figure 61
In a four-component mixture, only biphenyl was recorded. The other three
peaks were suppressed because they did not meet the ratio-qualifier criterion
and therefore the output was set to zero. The characteristic wavelengths
249 nm (λ
on page 131. The ratio range was set at 2 – 2.4 (2.2 ±10%). Only when the ratio
between 249 and 224 nm was within this range, is the signal plotted. Of all
four peaks, only the third fulfilled the criterion
others were not plotted.
132
Selectivity by Ratio Qualifiers
) and 224 nm (λ ) were found from the spectra shown in
1 2
(Figure 61
Agilent 1260 Infinity DAD and MWD User Manual
Figure 60
on page 132). The